(Updated) Prevent/Fix: Guidance for On-Premises Connectors Configuration [MC1226222]

(Updated) Prevent/Fix: Guidance for On-Premises Connectors Configuration [MC1226222]

Message ID: MC1226222 (Updated) Updated February 4, 2026: We have updated the content. Thank you for your patience. Original: Please do not paste images here. Attach your high-resolution PNGs to the No Reply confirmation email. Thank you! We are reiterating the…
(Updated) Microsoft Teams: Malicious URL Protection for Teams Chat and Channels [MC1148539]

(Updated) Microsoft Teams: Malicious URL Protection for Teams Chat and Channels [MC1148539]

Message ID: MC1148539 (Updated) Updated November 17, 2025: The rollout of Malicious URL Protection in Microsoft Teams is expected to finish before the end of November 2025 for General Availability (Worldwide). The previously announced update to make Malicious URL protection…
(Updated) New file protection in Teams chat and channels blocks unsafe content [MC1148540]

(Updated) New file protection in Teams chat and channels blocks unsafe content [MC1148540]

Message ID: MC1148540 (Updated) Updated November 17, 2025: The rollout of Weaponizable file type protection in Microsoft Teams is expected to finish before the end of November 2025 for General Availability (Worldwide). The previously announced update to make Weaponizable file…
(Updated) Microsoft Teams: Malicious URL Protection for Teams Chat and Channels [MC1148539]

(Updated) Microsoft Teams: Malicious URL Protection for Teams Chat and Channels [MC1148539]

Message ID: MC1148539 (Updated) Updated October 30, 2025: We have added a reminder message to the bottom of this post. Thank you for your patience.  IntroductionMicrosoft Teams is introducing enhanced protection against phishing attacks by detecting and warning users about…
(Updated) New file protection in Teams chat and channels blocks unsafe content [MC1148540]

(Updated) New file protection in Teams chat and channels blocks unsafe content [MC1148540]

Message ID: MC1148540 (Updated) Updated October 30, 2025: We have updated the content. Thank you for your patience.IntroductionMicrosoft Teams is introducing a new protection feature that blocks messages containing weaponizable file types—such as executables—in chats and channels. This helps reduce…