Teams updates to watch: malicious link warnings, blocked risky files, and a new private backroom chat

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Microsoft has announced three Teams updates the past months. Two that strengthen security and one that will improve how organizers coordinate events: Malicious URL Protection, Weaponizable file type protection and Private chat for organizers, co‑organizers, and presenters. Please note that timelines can shift, so treat the dates as guidance rather than guarantees. Malicious URL Protection (Roadmap ID 499893 ) Microsoft has announced link‑scanning in Teams chats and channels that warns senders and recipients about unsafe URLs. The feature reached general availability rollout by the end of November 2025, while the separate change to make it ON by default, originally planned as part of that release, has been postponed to early 2026.  If you don't want to wait for it to be on by default, or feel the need to configure it, you can do so in the Teams admins center: "Teams admin center → Messaging settings → Scan messages for unsafe URLs”. Or you can mange the configuration with Power...

Backup of your Lync 2013 script updated

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Based on my own experience with this backup scripts, I have updated the persistent chat section

Instead of just running the "Export-CsPersistentChatData" command, it will now check to see if persistant chat is implemented at all.

I have done this to avoid the big blood red text you get if it is not implemented.

The script is signed, and should run on any server, unmodified.

Instead of sharing the script through Drop-box, I have posted it in the Technet Gallery, right here: Backupscript-Lync_2013_v3.ps1. It will give you an option to rate the script, or even discuss it.