When deploying new devices and potentially at other times, alerts, presented in the form of Tasks, may be logged in the ICDm requesting the admin to validate SSL traffic decryption authenticity for the certificate "*.sepmobile.securitycloud.symantec.com". The Task will appear similar to this:
This cert is used by certain protection technologies, and having outdated policies in the ICDm can cause this behavior. The Network Integrity policy specifically has been observed as being linked to this issue, however other types of policies being outdated may also cause this. Here is an example of the warning sign seen when a policy has an update available:
Please review and update any policies which show that they have an update available.
The following article discusses the policy upgrade process in more detail: