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 Reprompt Copilot attack bypassed the LLMs data leak protections, leading to stealth information exfiltration after the ...
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.
4don MSN
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 ...
CrowdStrike's 2025 data shows attackers breach AI systems in 51 seconds. Field CISOs reveal how inference security platforms ...
Abstract "Double-extortion" ransomware attacks not only encrypt systems but also steal sensitive data. Traditional backups ...
Security researchers from Radware have demonstrated techniques to exploit ChatGPT connections to third-party apps to turn ...
There’s a well-worn pattern in the development of AI chatbots. Researchers discover a vulnerability and exploit it to do ...
The disclosure follows reports that the cybercriminal group Clop has been extorting a significant number of E-Business Suite customers. Oracle is now linking a widespread data extortion campaign ...
The Kyowon Group (Kyowon), a South Korean conglomerate, disclosed that a cyberattack has disrupted its operations and ...
Akshay Garkel, partner & leader at Grant Thornton Bharat LLP shares insights for founders navigating AI, cloud infrastructure ...
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