“Reprompt” attack lets attackers steal data from Microsoft Copilot


Researchers found a method to steal data which bypasses Microsoft Copilot’s built-in safety mechanisms. The attack flow, called Reprompt, abuses how Microsoft Copilot handled URL parameters in order to hijack a user’s existing Copilot Personal session.

Copilot is an AI assistant which connects to a personal account and is integrated into Windows, the Edge browser, and various consumer applications. The issue was fixed in Microsoft’s January Patch Tuesday update, and there is no evidence of in‑the‑wild exploitation so far. Still, it once again shows how risky it can be to trust AI assistants at this point in time.

Read more…
Source: Malwarebytes Labs


Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox


Related:

  • Cisco Warns of Critical Vulnerability Revealed in ‘Vault 7’ Data Dump

    March 20, 2017

    Cisco Systems warned customers on Friday of a critical vulnerability that could allow an attacker to execute arbitrary code and obtain full control on more than 300 different models of its switches and routers. Cisco said it became aware of the vulnerability after WikiLeaks released its Vault 7 cache of documents that revealed the existence ...