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Security researchers uncovered “EchoLeak,” a zero-click flaw in Microsoft 365 Copilot, exposing sensitive data without user action. Microsoft has mitigated the vulnerability.
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 ...
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 vulnerability, called “EchoLeak,” lets attackers “automatically exfiltrate sensitive and proprietary information” from Microsoft 365 Copilot without knowledge of the user, according to findings ...
In a world first, researchers from Aim Labs have identified a critical zero-click vulnerability in Microsoft 365 Copilot that can lead to the exfiltration of sensitive corporate data with a simple ...
Microsoft has fixed a dangerous zero-click attack in its Generative Artificial Intelligence (GenAI) model which could have allowed threat actors to silently exfiltrate sensitive corporate data without ...
The vulnerability, dubbed EchoLeak and assigned the identifier CVE-2025-32711, could have allowed hackers to mount an attack without the target user having to do anything.EchoLeak represents the ...
HIGHLIGHTS Microsoft Copilot manipulated into leaking data - no breach, just prompts. EchoLeak exposes deeper AI flaws. Microsoft patched Copilot’s EchoLeak flaw, but experts warn the real ...
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 ...
Microsoft 365 Copilot, the AI tool built into Microsoft Office workplace applications including Word, Excel, Outlook, PowerPoint, and Teams, harbored a critical security flaw that, according to ...
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 ...