AI agents are autonomous actors with real access to data and systems, not just copilots. Token Security explains why identity-based access control is critical to prevent misuse and data exposure. [...]

A new font-rendering attack causes AI assistants to miss malicious commands shown on webpages by hiding them in seemingly harmless HTML. [...]

Microsoft has stopped automatically installing the Microsoft 365 Copilot app on Windows devices outside the European Economic Area (EEA) that have the Microsoft 365 desktop client apps. [...]

The LeakNet ransomware gang is now using the ClickFix technique for initial access into corporate environments and deploys a malware loader based on the open-source Deno runtime for JavaScript and TypeScript. [...]

Microsoft has shared guidance to fix C:\ drive access issues and app failures on some Samsung laptops running Windows 11, versions 25H2 and 24H2. [...]

Microsoft has released an emergency update to fix a Bluetooth device visibility issue on hotpatch-enabled Windows 11 Enterprise devices. [...]

Microsoft is working to address a known issue that renders the classic Outlook email client unusable for users who have enabled the Microsoft Teams Meeting Add-in. [...]

Last week's cyberattack on medical technology giant Stryker was limited to its internal Microsoft environment and remotely wiped tens of thousands of employee devices. [...]

CISA warned U.S. government agencies to secure their Wing FTP Server instances against an actively exploited vulnerability that may be chained in remote code execution attacks. [...]

Companies House, a British government agency that operates the registry for all U.K. companies, says its WebFiling service is back online after it was closed on Friday to fix a security flaw that exposed companies' information since October 2025. [...]

Microsoft is working to address an ongoing Exchange Online outage that is preventing customers from accessing their mailboxes and calendars. [...]

Shadow AI is quietly spreading across SaaS environments as employees adopt new AI tools without IT oversight. Nudge Security explains how security teams can discover AI apps, monitor usage, and govern risky AI activity. [...]

​Microsoft has removed the Samsung Galaxy Connect app from the Microsoft Store because it was causing issues on specific Samsung Galaxy Book 4 and desktop models running Windows 11. [...]

OpenAI told BleepingComputer that ChatGPT ads on Free and Go plans are not yet rolling out outside the United States, even though some users noticed references to ads in the updated privacy policy. [...]

A new open-source tool called Betterleaks can scan directories, files, and git repositories and identify valid secrets using default or customized rules. [...]

Microsoft has released an out-of-band (OOB) update to fix a security vulnerabilities affecting Windows 11 Enterprise devices that receive hotpatch updates instead of the regular Patch Tuesday cumulative updates. [...]

The AppsFlyer Web SDK was temporarily hijacked this week with malicious code used to steal cryptocurrency in a supply-chain attack. [...]

Microsoft is investigating a new issue affecting some Samsung laptops running Windows 11 after installing the February 2026 security updates, in which users lose access to their C:\ drive and are unable to launch applications. [...]

The FBI is asking gamers who installed Steam titles containing malware to provide information as part of an ongoing investigation into eight malicious games uploaded to the gaming platform. [...]