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First Known Zero-Click AI Exploit: Microsoft 365 Copilot’s ‘EchoLeak’ Flaw
Security researchers uncovered “EchoLeak,” a zero-click flaw in Microsoft 365 Copilot, exposing sensitive data without user action. Microsoft has mitigated the vulnerability.
Zero-click AI data leak flaw uncovered in Microsoft 365 Copilot
A new attack dubbed 'EchoLeak' is the first known zero-click AI vulnerability that enables attackers to exfiltrate sensitive ...
CSO Online6d
First-ever zero-click attack targets Microsoft 365 Copilot
A single email can silently trigger Copilot to exfiltrate sensitive corporate data — no clicks, no warnings, no user action.
WinBuzzer2d
Microsoft 365 Copilot: Critical ‘EchoLeak’ Flaw Turned Microsoft’s Own AI Into Data Thief
Microsoft has patched the critical 'EchoLeak' vulnerability in Microsoft 365 Copilot, a flaw that allowed attackers to ...
Aim Security details first known AI zero-click exploit targeting Microsoft 365 Copilot
Critically, according to Aim’s researchers, all of this happens behind the scenes. Users themselves don’t have to open the ...
Exclusive: New Microsoft Copilot flaw signals broader risk of AI agents being hacked—‘I would be terrified’
Microsoft 365 Copilot, the AI tool built into Microsoft Office workplace applications including Word, Excel, Outlook, ...
SecurityWeek6d
‘EchoLeak’ AI Attack Enabled Theft of Sensitive Data via Microsoft 365 Copilot
Microsoft recently patched CVE-2025-32711, a vulnerability that could have been used for zero-click attacks to steal data ...
Microsoft fixes first known zero-click attack on an AI agent
EchoLeak affected Microsoft 365 Copilot, the AI assistant integrated across several Office applications, including Word, ...
Researchers Just Found a Big Security Flaw in Microsoft’s AI. Here’s Why Businesses Should Worry
Microsoft’s been inserting AI everywhere it can, including into some of the world’s most popular business productivity apps. ...
SourceSecurity.com12h
Agentic AI malware defense for mobile security
Appdome, the pioneer in protecting mobile businesses, announces the availability of new dynamic defense plugins to detect and ...
Microsoft 365 Copilot Vulnerable to Zero-Click EchoLeak Exploit, Cybersecurity Researchers Say
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 ...