Microsoft Copilot Cowork Exfiltrates Files: What to Do Now
PromptArmor disclosed that Microsoft Copilot Cowork can be tricked into exfiltrating files from a user's tenant through a chained prompt-injection attack on SharePoint.
GitHub Copilot Pauses Pro Signups, Drops Opus Models
GitHub paused new signups for the Copilot Pro, Pro+, and Student plans on April 20, 2026, and tightened usage limits across every individual plan.