Critical Security Flaw in Microsoft 365 Copilot Raises Zero-Click Attack Concerns

TL;DR Summary
Researchers uncovered 'EchoLeak,' a critical zero-click vulnerability in Microsoft 365 Copilot that allows silent exfiltration of sensitive data through prompt injection, highlighting emerging risks in AI-integrated enterprise systems. Microsoft fixed the flaw in May, with no evidence of exploitation, but the attack demonstrates the need for enhanced defenses against LLM scope violations.
Topics:business#ai-vulnerability#data-exfiltration#echoleak#microsoft-365-copilot#prompt-injection#technology
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