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A vulnerability in Microsoft 365 Copilot allowed attackers to trick the AI assistant into fetching and exfiltrating sensitive tenant data by hiding instructions in a document. The AI then encoded the data into a malicious Mermaid diagram that, wh…
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Understanding exactly how users authenticate to cloud services is crucial for effective security monitoring. A recently refined bitfield mapping technique decodes the opaque UserAuthenticationMethod values in Microsoft 365 audit logs, transforming nume…
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A critical security vulnerability in Microsoft Windows Cloud Minifilter has been patched, addressing a race condition that allowed attackers to escalate privileges and create files anywhere on the system. The vulnerability, tracked as CVE-2025-55680, w…
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Microsoft’s October 2025 Windows 11 update has introduced an unexpected connectivity issue affecting developers and IT professionals worldwide. The security patch KB5066835, released on October 14, 2025, for OS Builds 26200.6899 and 26100.6899, h…
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Microsoft’s name and branding have long been associated with trust in computing, security, and innovation. Yet a newly uncovered campaign by the Cofense Phishing Defense Center demonstrates that even the most recognized logos can be hijacked by threat …
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Cybercriminals are weaponizing artificial intelligence to accelerate malware development, discover vulnerabilities faster, and create more sophisticated phishing campaigns, according to Microsoft’s latest Digital Defense Report covering trends fr…
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Microsoft has confirmed a critical issue affecting Windows Server 2025 systems following the installation of October 2025 security updates. The problem disrupts Active Directory directory synchronization, specifically impacting organizations managing l…
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Microsoft has successfully disrupted a major cyberattack campaign orchestrated by the Vanilla Tempest threat group in early October 2025. The tech giant revoked over 200 fraudulent certificates that the cybercriminals had used to sign fake Microsoft Te…
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A serious security flaw has been discovered in Microsoft’s Internet Information Services (IIS) that lets attackers run arbitrary code without logging in. The vulnerability affects the IIS Inbox COM Objects and stems from improper handling of shared mem…
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Microsoft has disclosed a critical remote code execution flaw in its Internet Information Services (IIS) platform, posing risks to organizations relying on Windows servers for web hosting. Tracked as CVE-2025-59282, the vulnerability affects the Inbox COM Objects handling global memory, stemming from a race condition and use-after-free error. Announced on October 14, 2025, it carries […] The post Microsoft IIS Vulnerability Allows Unauthorized Attacker To execute Malicious Code appeared first on Cyber Security News.
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