How a simple link allowed hackers to bypass Copilot's security guardrails - and what Microsoft did about it

Reprompt impacted Microsoft Copilot Personal and, according to the team, gave "threat actors an invisible entry point to perform a data‑exfiltration chain that bypasses enterprise security controls ...

Microsoft Copilot AI attack took just a single click to compromise users - here's what we know

Security researchers Varonis have discovered Reprompt, a new way to perform prompt-injection style attacks in Microsoft ...

How this one-click Copilot attack bypassed security controls - and what Microsoft did about it

Reprompt impacted Microsoft Copilot Personal and, according to the team, gave "threat actors an invisible entry point to perform a data‑exfiltration chain that bypasses enterprise security controls ...

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 ...

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.