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Microsoft released emergency out-of-band security updates addressing four vulnerabilities across .NET, including a Brotli buffer overflow and incomplete fixes from an earlier October release. The updates apply to .NET 8, .NET 9, .NET 10, and .NET 11 Re…
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Microsoft has introduced new rules for assessing reports in its bug bounty programs, tying submission completeness more directly to potential rewards. Announced by the Microsoft Security Response Center (MSRC) on October 20, 2026, these changes replace…
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Microsoft has issued a warning about the risks posed by AI agents that access enterprise systems, especially when attackers manipulate them through methods like prompt injection, compromised inputs, or shifts in task context. To address this issue, the…
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More than 40,000 organisations have received fake calendar invitations designed to steal Microsoft account credentials, according to new…
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Microsoft and Health-ISAC seize domains linked to YAM Store, CoGUI and Iron Man, services that enabled over 1…
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Corelight researchers have disclosed a Windows Server vulnerability that lets attackers with network access crash affected systems with a single malicious DFS referral response. This vulnerability, tracked as CVE-2026-70111, affects Windows Server vers…
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Microsoft addressed 1,413 security vulnerabilities in its October 2026 Patch Tuesday update, making it the company’s largest monthly…
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Microsoft’s October 2026 Patch Tuesday security updates address 1,411 vulnerabilities across its product portfolio, including three zero-day flaws that enterprise defenders must address immediately. This unusually large update cycle affects various Mic…
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Microsoft today issued updates to fix more than 1,400 security vulnerabilities in its Windows operating systems and other software. Today’s epic patch batch dwarfs September’s record of nearly 1,000 fixes, which was already about ten times the normal monthly patch load from Redmond.
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Microsoft is enhancing Teams security with a new feature that detects malicious URLs hidden in QR codes and alerts recipients after they receive messages. This improvement extends the protections offered by Microsoft Defender for Office 365, combining …
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