US EditionHow This One-Click Copilot Attack Bypassed Security Controls - and What Microsoft Did About It
9 Articles
9 Articles
Security Researchers Warn of ‘Reprompt’ Flaw That Turns AI Assistants Into Silent Data Leaks
Cybersecurity researchers have revealed a newly identified attack technique that shows how artificial intelligence chatbots can be manipulated to leak sensitive information with minimal user involvement. The method, known as Reprompt, demonstrates how attackers could extract data from AI assistants such as Microsoft Copilot through a single click on a legitimate-looking link, while bypassing standard enterprise security protections. According to…
Varonis security researchers have discovered a serious vulnerability in Microsoft Copilot. The attack method "Reprompt" made it possible to access sensitive user data unnoticed by a single click. The security company Varonis has published details of an attack method called "Reprompt" that specifically exploited the consumer version of Microsoft's AI assistants. The attack vector only required a click on a prepared link, for example in a phishing…
Microsoft Patches Reprompt Attack on Copilot for Data Exfiltration
The Silent Thief: Unmasking the Reprompt Attack on Microsoft Copilot In the ever-evolving realm of cybersecurity threats, a new vulnerability has emerged that underscores the risks inherent in artificial intelligence tools integrated into everyday workflows. Researchers recently unveiled a sophisticated exploit known as the Reprompt attack, targeting Microsoft Copilot, the AI-powered assistant embedded in Microsoft 365 and other services. This m…
Varonis cybersecurity researchers have highlighted a way to bypass Copilot's security controls. The process is extremely stealthy: it takes just one click for Microsoft's AI tool to exfil the victim's data to the attacker's servers.
With the Reprompt attack method, cybercriminals can penetrate Microsoft copilot sessions of users. Attackers can steal data and execute malicious commands, even after the victim closes the Copilot window. Microsoft has now fixed the vulnerability.
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