Varonis found a “Reprompt” attack that let a single link hijack Microsoft Copilot Personal sessions and exfiltrate data; Microsoft patched it in January 2026.

If the name Cfx sounds familiar, that's because Rockstar acquired the modding team behind the wildly popular Grand Theft Auto ...

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 ...

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.

We tested noise-canceling headphones in the bustle of Grand Central Terminal, and these are the best Written By Written by Staff senior editor, Buy Side Nick Guy is a staff senior editor for Buy Side.

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