Outage in Whalebone
Content Filtering false positive blocking Microsoft sign-in
Resolved MinorIncident Report
We are investigating a false positive affecting Content Filtering. Some customers may be unable to access Microsoft sign-in through login.microsoftonline.com when the Gambling category is active in Content Filtering.
General DNS resolution remains operational. Protection and filtering outside this false positive are not known to be affected.
Our team is investigating and working to mitigate the incorrect blocking decision. Next update: within 60 minutes.
General DNS resolution remains operational. Protection and filtering outside this false positive are not known to be affected.
Our team is investigating and working to mitigate the incorrect blocking decision. Next update: within 60 minutes.
Components affected
Whalebone Main region Whalebone EU-01 Whalebone APAC-01 Whalebone AM-01 Whalebone DNS4EUTrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
16 days ago - at 04/24/2026 11:29AM
We have identified the source of the incorrect Content Filtering categorization for login.microsoftonline.com and have pushed corrective updates.
The domain should no longer be blocked on resolvers that have accepted the latest update. We are forcing regeneration of the remaining filtering data and verifying propagation.
General DNS resolution remains operational. Protection and filtering outside this false positive are not known to be affected.
Next update: within 60 minutes.
16 days ago - at 04/24/2026 11:20AM
We are investigating a false positive affecting Content Filtering. Some customers may be unable to access Microsoft sign-in through login.microsoftonline.com when the Gambling category is active in Content Filtering.
General DNS resolution remains operational. Protection and filtering outside this false positive are not known to be affected.
Our team is investigating and working to mitigate the incorrect blocking decision. Next update: within 60 minutes.
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