Varonis found a “Reprompt” attack that let a single link hijack Microsoft Copilot Personal sessions and exfiltrate data; Microsoft patched it in January 2026.

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 ...

PromptArmor, a security firm specializing in the discovery of AI vulnerabilities, reported on Wednesday that Cowork can be ...

Ascendant Technologies reports that budget-conscious businesses can enhance productivity and security through IT solutions ...

AI agents are rapidly moving from experimental tools to trusted decision-makers inside the enterprise—but security has not ...