description-logo Description

This indicates an attempt to access Microsoft Teams.
Microsoft Teams is a chat-based work space offered in Office 365. It is an application that offer content, tools, conversations, and people in the team workspace. Users can also access SharePoint, OneNote and Skype for Business.
Note: Please set "Microsoft.Teams", "Skype.Portals" and "Microsoft.Lync" to Allow/Monitor to whitelist Microsoft Teams.

affected-products-logoAffected Products

Microsoft Teams

Impact logoImpact

Network bandwidth consumption


Browser-Based, Network-Protocol, Client-Server, Peer-to-Peer, Cloud-Based, Mobile-Device


  • Reasonable

Default Ports

  • TCP/80
  • TCP/443
  • UDP/3478-3481

Version Updates

Date Version Detail
2023-12-18 26.698 Sig Added
2023-11-28 26.685 Modified
2023-10-24 25.663 Sig Added
2022-09-22 22.399 Sig Added
2020-04-16 15.819 Sig Added
2019-05-21 14.617 Sig Added