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Microsoft has rolled out a significant security enhancement to Windows File Explorer, automatically disabling the preview pane for files downloaded from the internet as part of security updates released on and after October 14, 2025. This proactive mea…
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Security researchers have discovered a sophisticated method that allows attackers to steal access tokens from Microsoft Teams, potentially granting unauthorized access to sensitive corporate communications, emails, and SharePoint documents. The attack …
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A new phishing campaign is targeting Microsoft account holders by using a clever twist on OAuth authentication prompts. Instead of asking users to hand over their passwords directly, attackers are tricking people into granting permission to malicious a…
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Cybercriminals are increasingly exploiting a legitimate Microsoft 365 feature designed for enterprise convenience, turning Exchange Online’s Direct Send into a dangerous vector for phishing campaigns and business email compromise attacks. Securit…
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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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