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Bleeping Computer
A new ClickFix variant dubbed TerminalFix uses fake Cloudflare CAPTCHA prompts on compromised websites to trick victims into running malicious PowerShell commands in Windows Terminal. [...]
Bleeping Computer
Microsoft has patched a maximum-severity vulnerability in the Entra ID identity and access management (IAM) platform that has been exploited in attacks. [...]
Bleeping Computer
Microsoft has observed a surge in attacks using the ACR Stealer malware to steal browser-stored passwords, authentication tokens, and sensitive documents from its enterprise customers. [...]
The Register
More patches mean more reasons to buy Redmond’s auto-patching tools
The Hacker News
New Microsoft research shows how attackers can hijack AI agents that act on a user's behalf, using nothing more than a poisoned tool description to make the agent quietly hand over company data to an outsider. The trick is that the agent never breaks a rule. Every step looks routine, so in a default setup no alarm may fire. The work comes from Microsoft Incident Response and its
The Hacker News
An active phishing campaign has been targeting hotel and other hospitality organizations across Europe and Asia since April 2026, using photo-themed ZIP files to drop a Node.js implant and dig into front-desk machines, Microsoft says. The company has not attributed the activity to a known threat actor, and the operators' end goal is still unclear. The lure plays to how hotels work.
The Hacker News
Microsoft has disclosed that a privilege escalation and a denial-of-service flaw in Defender has come under active exploitation in the wild. The former, tracked as CVE-2026-41091, is rated 7.8 on the CVSS scoring system. Successful exploitation of the flaw could allow an attacker to gain SYSTEM privileges. "Improper link resolution before file access ('link following') in Microsoft Defender
Bleeping Computer
On Wednesday, Microsoft started rolling out security patches for two Defender vulnerabilities that have been exploited in zero-day attacks. [...]
Bleeping Computer
On Thursday, Microsoft shared mitigations for a high-severity Exchange Server vulnerability exploited in attacks that allow threat actors to execute arbitrary code via cross-site scripting (XSS) while targeting Outlook on the web users. [...]
The Hacker News
Microsoft is calling attention to a new campaign that has leveraged WhatsApp messages to distribute malicious Visual Basic Script (VBS) files. The activity, beginning in late February 2026, leverages these scripts to initiate a multi-stage infection chain for establishing persistence and enabling remote access. It's currently not known what lures the threat actors use to trick users into