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How a simple link allowed hackers to bypass Copilot's security guardrails - and what Microsoft did about it

Dubbed "Reprompt," the attack used a URL parameter to steal user data. A single click was enough to trigger the entire attack chain. Attackers could pull sensitive Copilot data, even after the window ...

Critical 0-Click Microsoft Excel Security Bug Lets Copilot Steal Data

Excel users are warned to update now, as a critical vulnerability has been confirmed that can lead to “zero-click information ...
Computerworld

One click is all it takes: How ‘Reprompt’ turned Microsoft Copilot into a data exfiltration tool

AI copilots are incredibly intelligent and useful — but they can also be naive, gullible, and even dumb at times. A new one-click attack flow discovered by Varonis Threat Labs researchers underscores ...
Ars Technica

A single click mounted a covert, multistage attack against Copilot

NEVER fucking click links in e-mails. Just go to the domain and get it the hard way (if you can). It also helps if you use plain-text e-mail as your default display instead of HTML. That way links are ...
Bleeping Computer

Mail2Shell zero-click attack lets hackers hijack FreeScout mail servers

A maximum severity vulnerability in the FreeScout helpdesk platform allows hackers to achieve remote code execution without any user interaction or authentication. The flaw is tracked as ...
Bleeping Computer

ClickFix attack uses fake Windows BSOD screens to push malware

A new ClickFix social engineering campaign is targeting the hospitality sector in Europe, using fake Windows Blue Screen of Death (BSOD) screens to trick users into manually compiling and executing ...
CSOonline

One click is all it takes: How ‘Reprompt’ turned Microsoft Copilot into data exfiltration tools

AI copilots are incredibly intelligent and useful — but they can also be naive, gullible, and even dumb at times. A new one-click attack flow discovered by Varonis Threat Labs researchers underscores ...