Black Arrow Cyber Threat Intelligence Briefing 29 May 2026

Welcome to this week’s Black Arrow Cyber Threat Intelligence Briefing – a weekly digest, collated and curated by our cyber experts to provide senior and middle management with an easy to digest round up of the most notable threats, vulnerabilities, and cyber related news from the last week.

Executive Summary

Continuing the theme from recent weeks, our review of current cyber news in the media considers how organisations can use AI more securely by being aware of the risks and the need for stronger governance and oversight.

We highlight that this starts from the top of the organisation, including how the leadership uses AI, how they understand the risks to their core systems, and how they can fulfil regulatory and accountability responsibilities where AI agent failures cause disruption or harm. We also report on messaging from the UK’s NCSC on the need for organisations to strengthen their security in the face of escalating risks.

Alongside AI risks, traditional cyber risks remain: we include a reminder that phishing and vulnerability exploits are top cyber threats (which are also empowered by AI), alongside third-party risks.

While the threat landscape shifts and evolves, the actions required from business leaders remain consistent: ensure an objective and complete understanding of your risks, and an unbiased assessment of how your controls address those risks. Contact us to discuss how to achieve this proportionately.


Top Cyber Stories of the Last Week

Could Your CEO Be the Weakest Link When It Comes to AI Security? New Study Warns Execs Are ‘Knowingly Bypassing Safeguards Because the Perceived Benefits Outweigh the Risks’

New research from TrustedTech highlights a growing risk around unapproved AI use, with 62% of senior leaders admitting to using tools outside company controls, double the rate of wider employees. More than a quarter said they would continue using AI even if it was banned, despite many being concerned about staff doing the same. The risk is greater at leadership level because executives often have access to sensitive financial, HR, customer and legal data. The findings highlight how behaviour at senior level can undermine governance and increase organisational risk as AI adoption accelerates.

https://www.techradar.com/pro/security/could-your-ceo-be-the-weakest-link-when-it-comes-to-ai-security-new-study-warns-execs-are-knowingly-bypassing-safeguards-because-the-perceived-benefits-outweigh-the-risks

Companies Built AI into Core Systems Before Figuring Out How to Govern It

Check Point reports that 70% of organisations now use generative AI in live environments, while 64% have AI agents in pilot or production. In some cases, these agents have privileged access to core systems, increasing exposure to security incidents. More than half of organisations have already experienced at least one AI-related security issue, including unapproved AI use, AI-generated phishing, deepfake content and sensitive data leaks. Yet only 5% have visibility of the AI tools and services being used, leaving many organisations unable to consistently govern access, data flows and risk.

https://www.helpnetsecurity.com/2026/05/28/check-point-genai-security-controls-report/

When Your Biggest Security Risk Has Never Signed a Contract

As AI agents, systems that can act independently on behalf of an organisation, become embedded in business processes, accountability is moving from policy into law. UK and EU regimes increasingly expect a named senior leader to show reasonable oversight when agent failures cause disruption or harm. Responsibility cannot simply be assigned on paper. Senior sponsors need enough practical understanding to supervise the agents they own, supported by formal training that links legal accountability with meaningful operational control.

https://www.computerweekly.com/opinion/When-your-biggest-security-risk-has-never-signed-a-contract

The AI Phishing Revolution: From Spray-and-Pray to Autonomous Operations

AI is reshaping phishing from broad, low-effort scams into targeted, always-on campaigns. Attackers can now create convincing, personalised emails in under five minutes, operate across email, text, voice and collaboration tools, and adapt their approach when a target does not respond. Some attacks also bypass multi-factor authentication by tricking users into approving legitimate-looking login requests. With AI reducing the skill and cost needed to run these campaigns, organisations face a shift where attacks operate continuously and adapt in real time, making traditional, user-focused defences increasingly less effective.

https://www.itsecurityguru.org/2026/05/27/the-ai-phishing-revolution-from-spray-and-pray-to-autonomous-operations/

Bosses Blinded by Confidence about Shadow AI Use by Workers

Okta research found that 58% of organisations experienced an AI-related security incident or near miss in the past year, despite 90% of executives feeling confident they can see how AI is being used. The gap is driven by “shadow AI”, where employees use unapproved tools outside company oversight. More than half of knowledge workers admitted doing this, including 55% in the UK. Some also shared confidential documents, HR information or even login details, increasing business risk. The findings suggest a disconnect between leadership visibility and actual AI usage, increasing exposure to data leakage and governance challenges as adoption grows.

https://www.theregister.com/ai-ml/2026/05/27/bosses-blinded-by-confidence-about-shadow-ai-use-by-workers/5247275

68% of UK Firms Plan to Increase Cyber Spending as AI Risks Rise

Barclays reports that 68% of UK business leaders expect to increase cyber security spending over the next 12 months, as AI adoption and geopolitical uncertainty reshape technology priorities. Despite this, fewer than three in 10 firms are confident they could respond effectively to a major cyber incident. Average cyber security spend has reached £505,000 so far in 2026, rising to £1.3m among large businesses. Key concerns include loss of sensitive data or intellectual property, disruption to operations, loss of revenue and damage to customer trust.

https://www.infosecurity-magazine.com/news/uk-firms-cyber-spending-ai-risks/

Preparing for Severe Cyber Threat: Why Leaders Must Act Now

The NCSC has warned that severe cyber threats are becoming a credible risk for organisations delivering the UK’s critical services, including financial services, health, energy, transport, and communications. These attacks can cause extended downtime, financial loss, reputational damage and risks to public safety. With technologies such as advanced AI increasing the speed and scale of attacks, leaders are being urged to plan beyond prevention. Building resilience means identifying critical systems, preparing for degraded operations, rehearsing recovery plans and ensuring key decisions are understood before a major incident occurs.

https://www.ncsc.gov.uk/blogs/preparing-for-severe-cyber-threat-why-leaders-must-act-now

The UK’s Top Spy Says the Window to Stay Ahead of China and Russia Is Narrowing and Cyber Security Needs to Become ‘10 Times More Urgent’

GCHQ has warned that the UK and its allies have a narrowing window to stay ahead of growing cyber and intelligence threats from China and Russia. The agency’s director said warfare is becoming increasingly driven by data, artificial intelligence and automation, while Russia is intensifying activity against critical infrastructure, democratic processes, supply chains and public trust. The warning highlights the increasing pressure on organisations to strengthen supply chain resilience, protect data and manage access controls as part of a more urgent approach to cyber security.

https://fortune.com/2026/05/27/uk-top-spy-says-window-narrowing-for-west-to-stay-ahead-of-china-russia-intelligence-espionage-usa/

UK Spy Chief Labels AI ‘Unstoppable Force’ with Offensive, Defensive Ramifications for Cyberspace

GCHQ has warned that artificial intelligence is reshaping cyber security, creating both new opportunities and risks. Anne Keast-Butler, head of the UK intelligence agency, described AI as an “unstoppable force” that can be used to find weaknesses in critical technology and to support activity below the level of traditional warfare. GCHQ is developing an AI powered cyber shield to strengthen national defences, while warning that countries including China and Russia are using AI, data and automation to enhance cyber and hybrid threats.

https://cyberscoop.com/gchq-warns-ai-cyber-warfare-threats/

Phishing Most Prevalent Cyber Attack, Confirms UK Survey

New UK government research shows cyber attacks remain a persistent risk, affecting 43% of businesses and 28% of charities in the past year. Phishing, where criminals trick people into sharing information or clicking harmful links, remains the most common attack, impacting 38% of businesses and 25% of charities. Larger organisations face higher exposure, with 69% reporting an incident. Despite this, only around 30% conduct cyber risk assessments, while just 25% of businesses and 19% of charities have formal response plans. Supply chain oversight also remains limited, leaving many organisations exposed through partners and providers.

https://www.icaew.com/insights/viewpoints-on-the-news/2026/may-2026/phishing-most-prevalent-cyber-attack-confirms-uk-survey

Security Experts Caution MFA Alone Can No Longer Stop Threat Actors

Security researchers are warning that multi factor authentication is no longer enough on its own to stop account takeover attempts. New phishing services can steal Microsoft 365 access tokens, which allow criminals to access Outlook, Teams and OneDrive without needing a password or another login check. One service, Kali365, costs from $250 for 30 days and gives even less skilled attackers ready-made templates, dashboards and AI generated messages. This shift highlights how attackers are bypassing traditional authentication controls, reflecting a move toward identity-focused risks such as token misuse and anomalous account activity rather than reliance on login-based protections alone.

https://www.csoonline.com/article/4176814/security-experts-caution-mfa-alone-can-no-longer-stop-threat-actors.html

To Pay, or Not to Pay: 58% of CISOs Say They Would Pay the Ransom for Their Data

A survey of 750 CISOs in the US and UK found that 58% would be willing to pay a ransom to end a ransomware incident, despite official guidance advising against it. In practice, fewer organisations appear to pay, with IDC reporting that 37% of affected companies did so last year. Paying does not guarantee recovery, with some organisations receiving incomplete data restoration and only 60% of SMEs in one survey recovering all or part of their data after payment. The findings highlight the operational and recovery risks of ransomware, where payment does not guarantee data restoration and can still result in prolonged disruption.

https://www.csoonline.com/article/4176472/to-pay-or-not-to-pay-58-of-cisos-say-they-would-pay-the-ransom-for-their-data.html

Lessons for Organisations from the Verizon 2026 Data Breach Investigations Report

Verizon’s 2026 Data Breach Investigations Report highlights how many breaches still stem from gaps in basic cyber security controls. Based on more than 31,000 incidents and 22,000 confirmed breaches across 145 countries, the report found vulnerability exploitation was the leading route into organisations, accounting for 31% of breaches. Ransomware remained a major issue, appearing in 48% of breaches, while third party involvement also featured in 48%. The report also points to rising risks from employee use of unauthorised AI tools, with sensitive internal information being uploaded outside corporate control.

https://www.helpnetsecurity.com/2026/05/25/lessons-from-verizon-dbir-2026-findings/



Threats

Ransomware, Extortion and Destructive Attacks

Why pure extortion is replacing traditional ransomware - Security Affairs

To pay, or not to pay: 58% of CISOs say they would pay the ransom for their data | CSO Online

The Hidden Ransomware Economy Running on Exposed Databases

Ransomware Actors Show Up In Person to Steal Law Firm Data

The Gentlemen is Making Its Mark in the Ransomware World - Security Boulevard

Law enforcement shuts down VPN service used by two dozen ransomware gangs | TechCrunch

Payload Ransomware Uses ChaCha20 and Curve25519 ECDH to Encrypt Windows Files

More Australian firms are panicking and paying ransoms | The North West Star | Mt Isa, QLD

Ransomware and Destructive Attack Victims

FBI warns US-based law firms to be on the lookout for cybercrime group that steals data in person | CyberScoop

Charter confirms data breach after ShinyHunters extortion threat

MyPillow appears on Play ransomware leak site

Phishing & Email Based Attacks

Phishing most prevalent cyber attack, confirms UK survey | ICAEW

Microsoft 365 users targeted by new phishing threat that bypasses MFA - Help Net Security

FBI warns of Kali365 phishing kit that breaks into Microsoft 365 accounts — no password required

Cyber insurers warn AI is accelerating phishing and business email compromise attacks | Insurance Times

The AI Phishing Revolution - IT Security Guru

AI-Powered Phishing Puts MSSPs on the Defensive: Barracuda | news | MSSP Alert

Inside business email compromise attack: Real-world examples | TechTarget

Ghost CMS CVE-2026-26980 Exploited to Hijack 700+ Sites for ClickFix Attacks

Chinese Threat Actors Shift to Live Credential Interception - Infosecurity Magazine

CERT-UA reports attackers send emails to govt agencies allegedly from their team and State Special Communications Service

Business Email Compromise (BEC)/Email Account Compromise (EAC)

Cyber insurers warn AI is accelerating phishing and business email compromise attacks | Insurance Times

Inside business email compromise attack: Real-world examples | TechTarget

Other Social Engineering

MFA Prompt Bombing: Why Your Second Factor Isn't Saving You

700+ education and tech websites hijacked in huge ClickFix malware campaign | Malwarebytes

Ghost CMS CVE-2026-26980 Exploited to Hijack 700+ Sites for ClickFix Attacks

Iranian Hackers Using Fake Job Sites to Breach Defense Firms

Thousands of Fake FIFA Domains Target World Cup Fans - Infosecurity Magazine

FBI director Kash Patel’s brand website taken offline after malware reports

2FA/MFA

Security experts caution MFA alone can no longer stop threat actors | CSO Online

Microsoft 365 users targeted by new phishing threat that bypasses MFA - Help Net Security

FBI warns about fast-growing phishing kit targeting Microsoft 365 users | CyberScoop

MFA Prompt Bombing: Why Your Second Factor Isn't Saving You

AML/CFT/Money Laundering/Terrorist Financing/Sanctions

Two arrested for facilitating pro-Russia cyberattacks, violating EU sanctions | NL Times

Artificial Intelligence

Turns out the C-suite loves shadow AI - Help Net Security

Could your CEO be the weakest link when it comes to AI security? New study warns execs are 'knowingly bypassing safeguards because the perceived benefits outweigh the risks' | TechRadar

Companies built AI into core systems before figuring out how to govern it - Help Net Security

When your biggest security risk has never signed a contract | Computer Weekly

Bosses blinded by confidence about shadow AI use by workers

Cyber insurers warn AI is accelerating phishing and business email compromise attacks | Insurance Times

The AI Phishing Revolution - IT Security Guru

'The challenge is not a lack of technology, but a lack of alignment with the realities of work': Study claims workers are using unapproved AI tools at work, despite knowing the risks | TechRadar

AI shrinks zero-day exploit time from a year to a single day, heading toward one minute — Zero-Day Clock warns security window has collapsed | Tom's Hardware

UK spy chief labels AI ‘unstoppable force’ with offensive, defensive ramifications for cyberspace | CyberScoop

'Threat actors are adapting social engineering and monetization strategies to modern user behavior': Microsoft warns AI chatbots may be sending victims to malicious websites — so be on your guard when clicking | TechRadar

ECB convenes banks over AI cybersecurity risks from Mythos

AI guardrails stripped from Meta and Google models in minutes

European AI adoption hits 99% with regulated data driving most policy violations - Help Net Security

GCHQ draws up plans for world-first national AI cyber defence system | The Standard

Frontier AI models collapse under multi-turn AI attacks, Cisco finds - Help Net Security

‘SymJack’ Attack Turns AI Coding Agents Into Supply Chain Attack Delivery Systems - SecurityWeek

Worrying open-source security issue 'BadHost' could affect millions of AI agents, experts warn | TechRadar

One Man, One AI, One Fake Persona: Inside the 5-Year Influence and Fraud ‘Patriot Bait’ Campaign | Trend Micro (US)

Defenders Fall Behind, as AI Rewrites the Rules of a Data Breach

The New Legal Risk Isn’t AI Adoption—It’s AI Without Governance | Brownstein Hyatt Farber Schreck - JDSupra

Fake Gemini and Claude Code Sites Spread Infostealers - Infosecurity Magazine

The Growing Cybersecurity Risks To The Supply Chain In The AI Era

GPU mining malware spreads via SEO poisoning, AI chatbots

Why AI Could Make Cybersecurity One of the Hottest Jobs in Tech - ClearanceJobs

Cisco used AI to write security incident reports, with mixed results

Nimbus Manticore Expanded Attacks With AI-Assisted Malware and Fake Zoom Installers

Fake ChatGPT and Claude installers on GitHub are dropping Deno RAT malware - Help Net Security

Trump Postpones Signing AI Security Order Over Parts He Disliked

OpenAI heralds cybersecurity, election interference safeguard plans for 2026 midterms | CyberScoop

Anthropic Says a Mythos-Class AI Model Will Be Available Soon - CNET

Bots/Botnets

Canadian Man Arrested for Operating Kimwolf Botnet - SecurityWeek

GlassWorm Botnet Disrupted - SecurityWeek

Careers, Roles, Skills, Working in Cyber and Information Security

Why AI Could Make Cybersecurity One of the Hottest Jobs in Tech - ClearanceJobs

Amid fears of AI killing tech jobs, companies race to fill cybersecurity roles - Sherwood News

One Job That Is Growing in the A.I. Era? Cybersecurity Experts. - The New York Times

UK plans for cybercrime law reform would protect almost no one, experts warn | The Record from Recorded Future News

Why Burnout in Cybersecurity Demands Risk-Based Response - Infosecurity Magazine

Cloud/SaaS

Microsoft 365 users targeted by new phishing threat that bypasses MFA - Help Net Security

FBI warns about fast-growing phishing kit targeting Microsoft 365 users | CyberScoop

Cryptocurrency/Cryptomining/Cryptojacking/NFTs/Blockchain

GPU mining malware spreads via SEO poisoning, AI chatbots

One Man, One AI, One Fake Persona: Inside the 5-Year Influence and Fraud ‘Patriot Bait’ Campaign | Trend Micro (US)

Jailbroken Gemini helped Russian-speaking fraudster target MAGA crypto users

Inside a Crypto Drainer: How to Spot it Before it Empties Your Wallet

Lazarus Deploys RemotePE Memory-Only RAT Against Financial and Crypto Firms

From poisoned search results to GPU mining: A cryptojacking campaign abusing ScreenConnect and Microsoft .NET utilities | Microsoft Security Blog

Cyber Crime, Organised Crime & Criminal Actors

Ghost hackers: the cybersecurity mystery that nobody has solved | TechCrunch

First VPN Dismantled in Global Takedown Over Use by 25 Ransomware Groups

Dutch authorities dismantle hosting network allegedly used for cyberattacks and disinformation

Canadian Man Arrested for Operating Kimwolf Botnet - SecurityWeek

One Telecom Provider Hosted Most of the Middle East ’s Active C2 Infrastructure

Netherlands seizes 800 servers of hosting firm enabling cyberattacks

Former US execs plead guilty to aiding tech support scammers

Data Breaches/Leaks

Hacker claims to leak massive WhatsApp database before vanishing from forums | Cybernews

Defenders Fall Behind, as AI Rewrites the Rules of a Data Breach

‘The Worst Leak I’ve Witnessed’: A CISA Contractor Left AWS GovCloud Credentials Sitting In A Public GitHub Repo | Techdirt

46k plaintext passwords pwned in Myspace93 breach

German hospitals targeted in massive cyberattack

German Football Association leaves open goal for hackers, who are claiming password theft | Cybernews

Victims 'violated' after South Staffs Water's data breach - BBC News

OnlyFans mega leak reveals 340M user records, hackers claim | Cybernews

UK luxury car drivers' data may be exposed after Mercedes data leak claim | Cybernews

340 Million OnlyFans Profiles Allegedly Rebuilt from Leaks

Trump Mobile probing second major data leak — additional breach allegedly exposes personal info of 27,000 pre-order customers | TechRadar

Trump Mobile site leaks customer data as phone finally ships

7-Eleven data breach exposes personal information of 185,000 people

DocketWise Data Breach Impacts 143,000 - SecurityWeek

Lithuania Suspects Foreign Involvement in Data Leak of Over 600,000 National Register Entries - SecurityWeek

Data Protection

European AI adoption hits 99% with regulated data driving most policy violations - Help Net Security

Data/Digital Sovereignty

How a 900% Surge in Cyberattacks Is Forcing Europe to Rethink Its Tech Sovereignty — UNITED24 Media

Dutch Government just said no to an American firm buying the keys to their digital State

Denial of Service/DoS/DDoS

Why the Surge in DDoS Attacks Should Worry Security Leaders - Infosecurity Magazine

Encryption

Texas AG sues Meta over claims that WhatsApp doesn't provide end-to-end encryption - Ars Technica

‘Q-Day’ could be cybersecurity’s Armageddon | The Week

Apple open-sources quantum-resistant encryption code | CyberScoop

Fraud, Scams and Financial Crime

One Man, One AI, One Fake Persona: Inside the 5-Year Influence and Fraud ‘Patriot Bait’ Campaign | Trend Micro (US)

Jailbroken Gemini helped Russian-speaking fraudster target MAGA crypto users

Inside a Crypto Drainer: How to Spot it Before it Empties Your Wallet

Is your phone bill higher? 200+ Android apps might secretly be stealing money from you - PhoneArena

Thousands of Fake FIFA Domains Target World Cup Fans - Infosecurity Magazine

Security Leaders Should Prepare for World Cup Scams | Security Magazine

Fake Streams, Counterfeit Merch & Scams: How Fraudsters Target F1 Fans - Infosecurity Magazine

Insider Risk and Insider Threats

Turns out the C-suite loves shadow AI - Help Net Security

Could your CEO be the weakest link when it comes to AI security? New study warns execs are 'knowingly bypassing safeguards because the perceived benefits outweigh the risks' | TechRadar

Bosses blinded by confidence about shadow AI use by workers

'The challenge is not a lack of technology, but a lack of alignment with the realities of work': Study claims workers are using unapproved AI tools at work, despite knowing the risks | TechRadar

Why ‘shadow AI’ could become an expensive headache for businesses

Internet of Things – IoT

This Is Where Your Doorbell Camera's Security Footage Actually Goes

Law Enforcement Action and Take Downs

First VPN Dismantled in Global Takedown Over Use by 25 Ransomware Groups

Admins of Bulletproof Hosting Service Used by Russian Hackers Arrested in Netherlands - SecurityWeek

Dutch authorities dismantle hosting network allegedly used for cyberattacks and disinformation

Netherlands seizes 800 servers of hosting firm enabling cyberattacks

GlassWorm Botnet Disrupted - SecurityWeek

Two arrested for facilitating pro-Russia cyberattacks, violating EU sanctions | NL Times

Romanian Hacker Gets Nearly 5 Years in US Prison Over Network Intrusion

Canadian Man Arrested for Operating Kimwolf Botnet - SecurityWeek

Former US execs plead guilty to aiding tech support scammers

Dutch police arrests suspect linked to Ajax football club hack

Linux and Open Source

A Hacker Group Is Poisoning Open Source Code at an Unprecedented Scale | WIRED

Dirty Frag, Copy Fail, Fragnesia: The start of a worrisome Linux security trend

Hackers Hide Linux Payload Under SSH-Like Filename During Package Installation

Anthropic: Mythos Detected 23,000 Potential Vulnerabilities Across 1,000 OSS Projects - SecurityWeek

California moves to exempt Linux from its upcoming age-verification law after backlash over forcing operating systems to collect users’ ages — amendment proposed by the same lawmaker who wrote the original law | Tom's Hardware

From edge appliance to enterprise compromise: Multi-stage Linux intrusion via F5 and Confluence | Microsoft Security Blog

Shai-Hulud Hackers TeamPCP: Lucky or Skilled Operators?

China-Linked Hackers Target Southeast Asian Edge Routers With Custom Linux Implant

Malware

‘SymJack’ Attack Turns AI Coding Agents Into Supply Chain Attack Delivery Systems - SecurityWeek

Hackers Hide Linux Payload Under SSH-Like Filename During Package Installation

GPU mining malware spreads via SEO poisoning, AI chatbots

700+ education and tech websites hijacked in huge ClickFix malware campaign | Malwarebytes

Grandoreiro Malware and BTMOB RAT Campaigns Target Windows and Android Users

China-Linked Hackers Target Southeast Asian Edge Routers With Custom Linux Implant

GlassWorm Botnet Disrupted - SecurityWeek

Lazarus Deploys RemotePE Memory-Only RAT Against Financial and Crypto Firms

Fake Gemini and Claude Code Sites Spread Infostealers - Infosecurity Magazine

Fake ChatGPT and Claude installers on GitHub are dropping Deno RAT malware - Help Net Security

Megalodon chums the waters in 5.5K+ GitHub repo poisonings

Packagist Supply Chain Attack Infects 8 Packages Using GitHub-Hosted Linux Malware

TrapDoor Supply Chain Attack Spreads Credential-Stealing Malware via npm, PyPI, and CratesIO

Attackers Move Past Typosquatting to Realistic Package Impersonation - Infosecurity Magazine

Shai-Hulud Hackers TeamPCP: Lucky or Skilled Operators?

Nimbus Manticore Expanded Attacks With AI-Assisted Malware and Fake Zoom Installers

FBI director Kash Patel’s brand website taken offline after malware reports

Supply Chain Attack Targets Laravel-Lang Packages with Credential Stealer

MuddyWater Uses DLL Side-Loading in Espionage Campaign Targeting 9 Countries

Iranian APT Targets Aviation, Software Companies With Updated Tools - SecurityWeek

Scammers are Exploiting GTA 6 Hype to Spread Malware | Extremetech

Chinese APTs Share Linux Backdoor in Telco Attacks

Showboat Linux Malware Hits Middle East Telecom with SOCKS5 Proxy Backdoor

Misinformation, Disinformation and Propaganda

Dutch authorities dismantle hosting network allegedly used for cyberattacks and disinformation

One Man, One AI, One Fake Persona: Inside the 5-Year Influence and Fraud ‘Patriot Bait’ Campaign | Trend Micro (US)

Russia is hacking its way onto social media platform Bluesky to spread disinformation, company says | The Independent

Mobile

Grandoreiro Malware and BTMOB RAT Campaigns Target Windows and Android Users

Is your phone bill higher? 200+ Android apps might secretly be stealing money from you - PhoneArena

BTMOB Android RAT Spreads Through No-Code Builder Tooling - Infosecurity Magazine

Whoops! Trump Mobile seems to be leaking customer information — and order numbers might be far lower than previously estimated | TechRadar

Outages

Downtime has become a $600 billion business problem - Help Net Security

Passwords, Credential Stuffing & Brute Force Attacks

The Credential Crisis: How Stolen Credentials Defeat Modern Security - SecurityWeek

Why businesses still get password management wrong | TNW Deals

German Football Association leaves open goal for hackers, who are claiming password theft | Cybernews

Typed the wrong macOS password? That brief pause isn't a glitch | Macworld

Regulations, Fines and Legislation

UK plans for cybercrime law reform would protect almost no one, experts warn | The Record from Recorded Future News

ECB convenes banks over AI cybersecurity risks from Mythos

'We cannot regulate cyber threats away,' top lawyer warns

Trump Postpones Signing AI Security Order Over Parts He Disliked

Cyber Security and Resilience (Network and Information Systems) Bill 2024-26 - House of Commons Library

Minister Lloyd cyber security speech at the New Statesman - GOV.UK

California moves to exempt Linux from its upcoming age-verification law after backlash over forcing operating systems to collect users’ ages — amendment proposed by the same lawmaker who wrote the original law | Tom's Hardware

Restoring CISA is one issue many lawmakers can agree on | Federal News Network

National Cyber Security Centre 'absolutely' needs powers to deal with threats for Irish EU presidency

Shadow IT

Turns out the C-suite loves shadow AI - Help Net Security

Could your CEO be the weakest link when it comes to AI security? New study warns execs are 'knowingly bypassing safeguards because the perceived benefits outweigh the risks' | TechRadar

Bosses blinded by confidence about shadow AI use by workers

'The challenge is not a lack of technology, but a lack of alignment with the realities of work': Study claims workers are using unapproved AI tools at work, despite knowing the risks | TechRadar

Why ‘shadow AI’ could become an expensive headache for businesses

Social Media

Russia is hacking its way onto social media platform Bluesky to spread disinformation, company says | The Independent

46k plaintext passwords pwned in Myspace93 breach

Software Supply Chain

‘SymJack’ Attack Turns AI Coding Agents Into Supply Chain Attack Delivery Systems - SecurityWeek

A Hacker Group Is Poisoning Open Source Code at an Unprecedented Scale | WIRED

Hackers Hide Linux Payload Under SSH-Like Filename During Package Installation

Over 5,500 GitHub Repositories Infected in 'Megalodon' Supply Chain Attack - SecurityWeek

TrapDoor Supply Chain Attack Spreads Credential-Stealing Malware via npm, PyPI, and CratesIO

Megalodon chums the waters in 5.5K+ GitHub repo poisonings

Packagist Supply Chain Attack Infects 8 Packages Using GitHub-Hosted Linux Malware

The Growing Cybersecurity Risks To The Supply Chain In The AI Era

Shai-Hulud Hackers TeamPCP: Lucky or Skilled Operators?

Supply Chain and Third Parties

‘SymJack’ Attack Turns AI Coding Agents Into Supply Chain Attack Delivery Systems - SecurityWeek

The Growing Cybersecurity Risks To The Supply Chain In The AI Era


Nation State Actors, Advanced Persistent Threats (APTs), Cyber Warfare, Cyber Espionage and Geopolitical Threats/Activity

Cyber Warfare and Cyber Espionage

The U.K.’s top spy says the window to stay ahead of China and Russia is narrowing and cybersecurity needs to become ‘10 times more urgent’

UK spy chief labels AI ‘unstoppable force’ with offensive, defensive ramifications for cyberspace | CyberScoop

UK Spy Chief Warns China Is Closing Cyber Gap With West

UK spy chief says West between peace and war and 500,000 Russians killed in Ukraine war so far - ABC News

Cyber warfare is outpacing global legal accountability - The Hindu

How concerned should CIOs be with geopolitics? | CIO

Even as AI gets better at finding digital weak spots, it doesn’t eliminate the human role in cyber conflict | Federal News Network

Nation State Actors

China

UK spy chief labels AI ‘unstoppable force’ with offensive, defensive ramifications for cyberspace | CyberScoop

UK Spy Chief Warns China Is Closing Cyber Gap With West

The U.K.’s top spy says the window to stay ahead of China and Russia is narrowing and cybersecurity needs to become ‘10 times more urgent’

Chinese Threat Actors Shift to Live Credential Interception - Infosecurity Magazine

China-Linked Hackers Target Southeast Asian Edge Routers With Custom Linux Implant

Chinese APTs Share Linux Backdoor in Telco Attacks

Showboat Linux Malware Hits Middle East Telecom with SOCKS5 Proxy Backdoor

Russia

UK spy chief labels AI ‘unstoppable force’ with offensive, defensive ramifications for cyberspace | CyberScoop

The U.K.’s top spy says the window to stay ahead of China and Russia is narrowing and cybersecurity needs to become ‘10 times more urgent’

UK spy chief says West between peace and war and 500,000 Russians killed in Ukraine war so far - ABC News

Russia 'relentlessly targeting' critical infrastructure, democracy - GCHQ - BBC News

Russia is hacking its way onto social media platform Bluesky to spread disinformation, company says | The Independent

Admins of Bulletproof Hosting Service Used by Russian Hackers Arrested in Netherlands - SecurityWeek

Two arrested for facilitating pro-Russia cyberattacks, violating EU sanctions | NL Times

Kremlin appoints cyber executive with alleged GRU ties to Security Council role | The Record from Recorded Future News

One Man, One AI, One Fake Persona: Inside the 5-Year Influence and Fraud ‘Patriot Bait’ Campaign | Trend Micro (US)

Lithuania Suspects Foreign Involvement in Data Leak of Over 600,000 National Register Entries - SecurityWeek

CERT-UA reports attackers send emails to govt agencies allegedly from their team and State Special Communications Service

Experts question Nigel Farage’s Russian phone-hacking claims

North Korea

Lazarus Deploys RemotePE Memory-Only RAT Against Financial and Crypto Firms

Iran

Iranian Hackers Using Fake Job Sites to Breach Defense Firms

Nimbus Manticore Expanded Attacks With AI-Assisted Malware and Fake Zoom Installers

MuddyWater Uses DLL Side-Loading in Espionage Campaign Targeting 9 Countries

Iranian APT Targets Aviation, Software Companies With Updated Tools - SecurityWeek

The LA Metro Attack Wasn't Hacktivism. It Was a State Operation With a Costume On.

Other Nation State Actors, Hacktivism, Extremism, Terrorism and Other Geopolitical Threat Intelligence

Ghostwriter Targets Ukraine Government Entities with Prometheus Phishing Malware

How concerned should CIOs be with geopolitics? | CIO

A nation on a hard drive: Inside the rise of digital embassies – POLITICO


Tools and Controls

Security experts caution MFA alone can no longer stop threat actors | CSO Online

AI shrinks zero-day exploit time from a year to a single day, heading toward one minute — Zero-Day Clock warns security window has collapsed | Tom's Hardware

Anthropic's Claude Mythos Preview Uncovers 10,000+ 0-Days in Project Glasswing

Microsoft 0-day feud escalates as researcher threatens another Windows exploit dump

MFA Prompt Bombing: Why Your Second Factor Isn't Saving You

Preparing for severe cyber threat: why leaders must act now | National Cyber Security Centre

The Next-Gen Flipper Zero Looks Even More Powerful Than Expected

Project Glasswing by Anthropic didn't just find the bugs. It also found the real vuln | Ctech

UK plans for cybercrime law reform would protect almost no one, experts warn | The Record from Recorded Future News

Why businesses still get password management wrong | TNW Deals

Why Burnout in Cybersecurity Demands Risk-Based Response - Infosecurity Magazine

Cybersecurity Evolution: Perimeter Defense to AI-Native Security

Apple open-sources quantum-resistant encryption code | CyberScoop

European AI adoption hits 99% with regulated data driving most policy violations - Help Net Security

Amid fears of AI killing tech jobs, companies race to fill cybersecurity roles - Sherwood News

One Job That Is Growing in the A.I. Era? Cybersecurity Experts. - The New York Times

Cisco used AI to write security incident reports, with mixed results

Anthropic launches Claude Opus 4.8, prepares Mythos-class models for all customers - Help Net Security

Anthropic adds 28 security and compliance integrations for Claude - Help Net Security

For CISOs, dawn of OpenAI Daybreak brings good and bad news | TechTarget

Claude now reviews and fixes vulnerabilities as you write code - Help Net Security




Vulnerability Management

AI shrinks zero-day exploit time from a year to a single day, heading toward one minute — Zero-Day Clock warns security window has collapsed | Tom's Hardware

Anthropic's Claude Mythos Preview Uncovers 10,000+ 0-Days in Project Glasswing

Microsoft Slams Public Zero-Day Disclosures Amid GitHub Researcher Account Removal

Microsoft Threatens Researcher Over Bug Reports, Triggers Cybersecurity Uproar

Three-Quarters of Firms Knowingly Ship Vulnerable Code, Says Checkmarx - Infosecurity Magazine

NIST’s CVE Shift Raises the Bar for Vulnerability Prioritization | perspective | MSSP Alert

Lessons for organizations from the Verizon 2026 Data Breach Investigations Report - Help Net Security

Why some security fixes never reach your vulnerability dashboard | CSO Online

Verizon 2026 DBIR: 6 key takeaways for CISOs | TechTarget

Project Glasswing by Anthropic didn't just find the bugs. It also found the real vuln | Ctech

Anthropic to release Mythos-class models to the public

Why CISA Accepting KEV Nominations Is So Important | Security Magazine

Cisco refines its risk-based vulnerability disclosure for the AI era - Help Net Security

Vulnerabilities

Microsoft patches two zero-day flaws in Defender | CSO Online

SharePoint Has a New RCE Flaw. If You Haven't Patched Yet, Go Do That.

LiteSpeed cPanel Plugin CVE-2026-48172 Exploited to Run Scripts as Root

Drupal Vulnerability in Hacker Crosshairs Shortly After Disclosure - SecurityWeek

CVE-2026-9082: Drupal's Highly Critical SQL Injection Flaw Is Already Under Active Attack

Threat Actors Exploit Critical FortiClient EMS Flaw to Deploy Credential Stealer

Ghost CMS CVE-2026-26980 Exploited to Hijack 700+ Sites for ClickFix Attacks

700+ education and tech websites hijacked in huge ClickFix malware campaign | Malwarebytes

Gitea Vulnerability Exposed 30,000 Deployments to Attacks - SecurityWeek

New Gogs 0-Day Vulnerability Lets Attackers Run Malicious Code on the Server Remotely

KnowledgeDeliver flaw exploited as a zero-day to install web shells

Dirty Frag, Copy Fail, Fragnesia: The start of a worrisome Linux security trend

Notepad++ fixes critical vulnerabilities that can lead to malware | Cybernews

Trend Micro warns of Apex One zero-day exploited in the wild

Ubiquiti patches three max severity UniFi OS vulnerabilities

‘Underminr’ Vulnerability Lets Attackers Hide Malicious Connections Behind Trusted Domains - SecurityWeek

Vulnerability in Popular Conference Software Granted Attackers a 100% Talk Acceptance Rate - SecurityWeek


Sector Specific

Industry specific threat intelligence reports are available.

Contact us to receive tailored reports specific to the industry/sector and geographies you operate in.

  • Automotive

  • Construction

  • Critical National Infrastructure (CNI)

  • Defence & Space

  • Education & Academia

  • Energy & Utilities

  • Estate Agencies

  • Financial Services

  • FinTech

  • Food & Agriculture

  • Gaming & Gambling

  • Government & Public Sector (including Law Enforcement)

  • Health/Medical/Pharma

  • Hotels & Hospitality

  • Insurance

  • Legal

  • Manufacturing

  • Maritime & Shipping

  • Oil, Gas & Mining

  • OT, ICS, IIoT, SCADA & Cyber-Physical Systems

  • Retail & eCommerce

  • Small and Medium Sized Businesses (SMBs)

  • Startups

  • Telecoms

  • Third Sector & Charities

  • Transport & Aviation

  • Web3


Contact us to help assess where your risks lie and to ensure you are doing all you can do to keep you and your business secure.

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Links to external articles are provided for general interest and awareness only. Linking to or reposting external content does not constitute endorsement of or by any organisation, service, or product. We do not control and are not responsible for the content, security, or availability of external websites or links. Full credit is given to the original authors and sources. E&OE.

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Black Arrow Cyber Threat Intelligence Briefing 22 May 2026