Microsoft Patch Tuesday for May 2026 — Snort rules and prominent vulnerabilities
Microsoft has released its monthly security update for May 2026, which includes 112 vulnerabilities affecting a range of products, including 16 that Microsoft marked as “critical”.
Microsoft addresses 137 vulnerabilities in May’s Patch Tuesday, including 13 rated critical | CyberScoop
The high volume of vulnerabilities reflects a growing trend researchers have been anticipating as artificial intelligence models are deployed to find previously uncovered defects in code.
Major world economies spell out key elements of AI ‘ingredients list’ | CyberScoop
G7 agencies and CISA have released a new baseline for AI "ingredients lists," or SBOMs, to bolster supply chain security. While experts call it a "strong step" for transparency, some warn of implementation gaps.
‘Mini Shai-Hulud’ malware compromises hundreds of open-source packages in sprawling supply-chain attack | CyberScoop
A sprawling supply-chain attack dubbed "Mini Shai-Hulud" has compromised hundreds of open-source packages, including TanStack and MistralAI. By hijacking automated CI/CD pipelines and spoofing digital signatures, the TeamPCP-linked malware successfully bypassed 2FA to steal cloud credentials and extort developers across major registries.
UK fines water supplier $1.3M for exposing data of 664k customers
The Information Commissioner's Office has fined South Staffordshire Water Plc and parent company South Staffordshire Plc £963,900 ($1.3 million) over a cyberattack that exposed the personal data of 663,887 customers and employees.
Signal adds security warnings for social engineering, phishing attacks
Signal has introduced new in-app confirmations and warning messages as additional safeguards against phishing and social engineering attempts that could lead to various forms of fraud.
Webinar: Fixing the gaps in network incident response
IT teams often struggle to quickly coordinate responses across disparate systems during network incidents. This upcoming webinar explores how automation and AI-assisted workflows can reduce response times and help prevent outages.
Microsoft releases Windows 10 KB5087544 extended security update
Microsoft has released the Windows 10 KB5087544 extended security update to fix the May 2026 Patch Tuesday vulnerabilities and resolve an issue with the new Remote Desktop warnings.
Fortinet warns of critical RCE flaws in FortiSandbox and FortiAuthenticator
Fortinet has released security patches for two critical vulnerabilities in FortiSandbox and FortiAuthenticator that could enable attackers to run commands or arbitrary code.
Windows 11 KB5089549 & KB5087420 cumulative updates released
Microsoft has released Windows 11 KB5089549 and KB5087420 cumulative updates for versions 25H2/24H2 and 23H2 to fix security vulnerabilities, bugs, and add new features.
Defending consumer web properties against modern DDoS attacks | Microsoft Security Blog
Learn how to protect consumer websites and defend against modern DDoS attacks with layered security, resilient architecture, and graceful service degradation.
Google and Amnesty International teamed up to make it harder for spyware vendors to hide | CyberScoop
Google has rolled out Intrusion Logging for Android, a first-of-its-kind forensic tool developed with Amnesty International to help journalists and activists detect sophisticated spyware attacks and device compromises.
Android 17 to expand banking scam call and privacy protections
Android 17, expected to roll out next month, will introduce several security and privacy features focused on device theft, threat detection, and banking scam calls.
Škoda warns of customer data breach after online shop hack
Škoda Auto, a wholly owned subsidiary of the Volkswagen Group, has disclosed a data breach after attackers hacked its online shop and stole the personal information of an undisclosed number of customers.
Undermining the trust boundary: Investigating a stealthy intrusion through third-party compromise | Microsoft Security Blog
Microsoft Incident Response investigated an attack operated through legitimate and trusted administrative mechanisms to blend seamlessly into routine operations and remain undetected demonstrating that intrusions have increasingly avoided using noisy exploits, obvious malware, or custom tooling, instead leveraging systems that organizations already trust within their environments.
FIRESIDE CHAT: Cyber insurers deepen SMB security role as supply chain attacks spread - The Last Watchdog
The cyber insurance industry set out to manage financial risk. Along the way, it has quietly became the security operations provider for a significant share of American small businesses. An $11 billion acquisition agreement announced earlier this year suggests it intends to stay in that role. Related: No easy AI security fixes I sat down