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Microsoft patches critical SearchLeak vulnerability in Copilot for Microsoft 365 (opens in new tab)

Microsoft recently addressed a maximum severity vulnerability in Copilot for Microsoft 365 identified as CVE-2026-42824. The flaw, dubbed SearchLeak, allowed attackers to exfiltrate sensitive data through a single-click exploit involving a specially crafted URL. This vulnerability highlights the ongoing difficulty AI models face in distinguishing between legitimate user instructions and malicious prompts embedded in third-party content. <a href="

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