TheRegister's platform is a leading technology news website, offering insights into IT industry news, hardware reviews, and software updates. Through articles, analysis, and opinion pieces, TheRegister offers insights into cybersecurity threats, technology trends, and industry developments. Readers can stay updated with the latest news and analysis from the world of technology and IT business.

The Register

Microsoft 365 Copilot Chat has a confirmed bug where it summarizes emails labeled 'Confidential' even when Data Loss Prevention (DLP) policies are configured to block such access. The root cause is a code issue allowing Copilot to access items in sent and draft folders despite sensitivity labels being applied. Microsoft acknowledged the problem in early February 2026 after customer reports surfaced on January 21, and is working on a remediation. The incident highlights broader concerns about AI tools bypassing enterprise security controls, with 72% of S&P 500 companies already citing AI as a material risk in regulatory filings.

Copilot Chat bug bypasses DLP on 'Confidential' email