Security researchers uncovered “EchoLeak,” a zero-click flaw in Microsoft 365 Copilot, exposing sensitive data without user action. Microsoft has mitigated the vulnerability.

Security researchers at Aim Security discovered "EchoLeak", the first known zero-click artificial intelligence (AI) ...

A critical AI vulnerability, 'EchoLeak,' was discovered in Microsoft 365 Copilot by Aim Labs researchers in January 2025.

The vulnerability, called “EchoLeak,” lets attackers “automatically exfiltrate sensitive and proprietary information” from ...

A new attack dubbed 'EchoLeak' is the first known zero-click AI vulnerability that enables attackers to exfiltrate sensitive data from Microsoft 365 Copilot from a user's context without interaction.

The researchers at Aim Security dubbed the flaw “EchoLeak.” Microsoft told Fortune that it has already fixed the issue in Microsoft 365 Copilot and that its customers were unaffected. “We appreciate ...

For example, Copilot being able to connect to OneDrive and retrieving data from a file stored there to answer a user query would be considered an agentic action. As per the researchers, the attack was ...

Researchers uncover a critical AI flaw in Microsoft 365 Copilot, allowing silent data theft through email without any user interaction.

A critical AI vulnerability, 'EchoLeak,' was discovered in Microsoft 365 Copilot by Aim Labs researchers in January 2025. This flaw allowed attackers to exfiltrate sensitive user data through ...

First-ever zero-click attack targets Microsoft 365 Copilot. News. ... Echoes beyond Microsoft “EchoLeak marks a shift to assumption-of-compromise architectures,” Garg stated.