Microsoft is unlocking the "Full Potential" of Private Channels in Microsoft Teams: What You Need to Know

It has been a while since I posted something just about a Microsoft Teams update, as a lot have been Copilot in Teams to be honest. But here is a real Microsoft Teams update I think is worth knowing about, and it involves Security and Compliance as well. Microsoft is rolling out a "major" update to private channels in Teams, starting in late September 2025 and continuing through mid-December. This biggest change in this update is a shift in how private channel data is stored from individual user mailboxes to a dedicated channel mailbox. Not only will this simplifie compliance management, it will also and align private channels with shared channels, making governance and experience more consistent across Teams. This update promises to increase the support up to 1000 channels per team and 5000 members per channel, removing previous limitations. Teams will also allow meetings to be scheduled directly within private channels, enhancing collaboration.  For organizations using Micr...

Leagcy portals to control MFA is set to retire in September 2025

Microsoft recently introduced a new campaign to encourage users to register for Multifactor Authentication, and move away from less secure authentication methods, such as SMS and phone calls. When users sign in with these legacy methods, they will be prompted to set up the Microsoft Authenticator. Users can ignore this a couple of times, but will eventually be forced to register.

IT administrators looking for guidance on how to control the behavior, start an early migration or maybe exempt certain users, can follow this guidance

As a follow-up to this new way of controlling MFA, Microsoft recently announced that the legacy version of Multifactor Authentication will be retired on September 30th, 2025. Organizations are advised to transition their authentication methods before the deadline in 2025.