Cloud Browser Isolation – Unable to create or modify isolation profiles

Zscaler has identified an issue within Cloud Browser Isolation (CBI) impacting customers with legacy isolation SKUs. Affected customers may experience difficulties when attempting to create or modify isolation profiles. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Latest Update - Sat, 17 Jan 2026 16:12:49 UTCZscaler has successfully deployed the fix to the ZSC cloud. Following the deployment, Zscaler has completed all necessary verification steps to ensure service stability. Fix deployment for ZS2 and ZS3 cloud will be as per the scheduled.Update - Fri, 16 Jan 2026 13:14:02 UTCZscaler has identified the cause and is currently validating a fix in our testing environment. A deployment schedule for the production environment will be shared as soon as validation is successfully completed.Update - Fri, 16 Jan 2026 16:42:14 UTCZscaler has validated the fix in the test environment. Teams are now preparing the build for deployment, which will be rolled out to the beta environment first for testing before being deployed to the production environment.Update - Sat, 17 Jan 2026 10:31:19 UTCZscaler has successfully tested the fix in the beta environment. The fix has been now deployed in the ZS1 and ZSN clouds and below is the plan to roll out the fix in the remaining production clouds:Sat, 17 Jan 2026 13:00 UTC: ZSC and ZSGOVSun, 18 Jan 2026 01:00 UTC: ZS2 and ZS3.We will monitor each window and share completion updates.Update - Sat, 17 Jan 2026 16:12:49 UTCZscaler has successfully deployed the fix to the ZSC cloud. Following the deployment, Zscaler has completed all necessary verification steps to ensure service stability. Fix deployment for ZS2 and ZS3 cloud will be as per the scheduled.