Google Cloud Platform issue was addressed by Google and all Sophos Home services went back to normal on 2025-06-12 18:18 (all times are US/Pacific).

For more details, refer to their incident page: Multiple GCP products are experiencing Service issues 

THIS ISSUE HAS BEEN FIXED BY THE VENDOR - NO ACTION IS REQUIRED.

We are aware of a problem that was impacting https://my.sophos.com , which was related to a third party service - Google Cloud Platform.  The problem also impacted purchases that needed to synchronize with Sophos through the cloud. 
Customers may not have been able to authenticate/access their accounts while the issue took place.

New users might have encountered problems receiving new License Keys during that time. 

This is not a Sophos issue, and we expect the problems to clear as soon as the Google Cloud Platform issue is fully fixed by the vendor https://status.cloud.google.com/