How ‘Reprompt’ Attack Let Hackers Steal Data From Microsoft Copilot

January 19, 2026
1 min read

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

The post How ‘Reprompt’ Attack Let Hackers Steal Data From Microsoft Copilot appeared first on TechRepublic.

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