See how Microsoft Defender detects and disrupts AI-themed phishing, malware, and multi-stage attacks across the attack chain. The post Detect and disrupt AI-themed attacks with Microsoft Defender appeared first on Microsoft Security Blog .
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Security researchers used Anthropic’s Claude to exploit vulnerabilities in OpenAI’s systems, taking over employee accounts and gaining access to an internal code repository before…
Microsoft 365 makes sharing files easy, but access can remain long after its original purpose has ended, leaving organizations with little visibility into who can still reach sens…
Microsoft Teams will soon let administrators tweak the list of file extensions commonly associated with security threats to meet their company's security requirements. [...]
A recent Windows security update is creating unexpected authentication problems for some organizations that use on-premises Active Directory. After installing the September 2026 s…
