Microsoft Defender for Cloud Apps network requirements update
From Microsoft 365 Message Center Archive by Merill Fernando · Microsoft may not have sent this notice to your tenant.Action date
What the notice says
Microsoft’s text, safely structuredWe're updating IPs for portal access and SIEM agent connections.
When this will happen
This change will occur January 7, 2024
How this will affect your organization
The new IPs are added to the portal access and SIEM agent connection sections in the Microsoft Defender for Cloud apps network requirements.
To ensure unaffected work with Microsoft Defender for Cloud apps please take the time to allow the new IPs.
What you need to do to prepare
Review your current configuration and ensure the appropriate IPs are allowed to minimize impact to your service.
What changed
Between archive captures, newest firstWe're updating IPs for portal access and SIEM agent connections.
When[When this willhappen:happen:] This change will occur January 7, 2024How[How this will affect yourorganization:organization:] The new IPs are added to the portal access and SIEM agent … for Cloud apps please take the time to allow the new IPs.What[What you need to do toprepare:prepare:] Review your current configuration and ensure the appropriate IPs are allowed to …- · first version seen
Learn more
Links from the notice and their documentation checks- Microsoft Defender for Cloud apps network requirementsChecked 15 Nov 2026
Related public changes
No related announcements were found in the saved public history. Check the source for newer announcements.
Not confirmed here
What this page cannot tell you- Whether your tenant is affected: this is Microsoft's notice, not a check of your settings.