A single click mounted a covert, multistage attack against Copilot

Microsoft has fixed a vulnerability in its Copilot AI assistant that allowed hackers to pluck a host of sensitive user data ...

One click is all it takes: How ‘Reprompt’ turned Microsoft Copilot into a data exfiltration tool

A new one-click attack flow discovered by Varonis Threat Labs researchers underscores this fact. ‘Reprompt,’ as they’ve ...

Target's dev server offline after hackers claim to steal source code

Hackers are claiming to be selling internal source code belonging to Target Corporation, after publishing what appears to be ...

Reprompt attack hijacked Microsoft Copilot sessions for data theft

Researchers identified an attack method dubbed "Reprompt" that could allow attackers to infiltrate a user's Microsoft Copilot session and issue commands to exfiltrate sensitive data.