Microsoft.CDN

Description

This indicates an attempt to access Microsoft's CDNs.
Microsoft's CDNs are used by Microsoft services as portals and authentications.

Affected Products

Microsoft

Impact

Network resource consumption

Technology

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

Behavior

• Reasonable

Default Ports

• TCP/80
• TCP/443
• UDP/443

References

• https://support.office.com/en-us/article/Office-365-URLs-and-IP-address-ranges-8548a211-3fe7-47cb-abb1-355ea5aa88a2?ui=en-US&rs=en-US&ad=US