The Cisco Umbrella Chromebook Client (UCC) App version 1.3.8 adds a validation process to ensure that the organization ID, token, and device ID (which is the email address of the user) fields in the UCC registration are not empty. Missing data in any of these fields will now cause the registration request to fail.
No customer actions change as a result of this update. When the customer's administrator pushes the configuration file, it will automatically generate correct registration requests.
This update eliminates the possibility of malformed packets consuming cloud resources.