New ‘Reprompt’ Attack Silently Siphons Microsoft Copilot Data

New ‘Reprompt’ Attack Silently Siphons Microsoft Copilot Data 2026-01-15 at 14:44 By Ionut Arghire The attack bypassed Copilot’s data leak protections and allowed for session exfiltration even after the Copilot chat was closed. The post New ‘Reprompt’ Attack Silently Siphons Microsoft Copilot Data appeared first on SecurityWeek. This article is an excerpt from SecurityWeek View […]

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