Microsoft announces new security features to boost Teams defenses

Close-up on Microsoft Window 10 Screen Background on the Microsoft Surface.

• Microsoft is automatically enabling security features for enterprise users
• The updates include blocking malicious URLs and phishing detection
• Any users who would prefer these disabled can do so in Settings

Microsoft is strengthening its security posture for enterprises, and from January 12 2026, Microsoft Teams will automatically enable critical messaging safety features - aiming to protect users who rely solely on standard safety configurations.