Persistent error message
This pop up message appears every few minutes, randomly. iPad Air 18.7.1. Have cleared Safari history. Any suggestions please to get rid of it?
[Edited by Moderator]
iPad Air 3
The error indicates that the TLS/SSL certificate used by the associated website/service is untrusted. Without additional information, it is impossible to provide a definitive explanation - however, there are two principal candidates:
1) The Certificate chain of trust is broken - with the Root or Intermediate CA certificates having an error or are themselves invalid.
2) Your TLS/SSL session is being "inspected" by a third-party or security proxy - breaking the trust chain. Deep-packet inspection of TLS/SSL traffic is common in Enterprise/Business/Educational network environments.
Either way, the error is a warning that the session is not secure. Other than contacting the associated Security Administrator for advice, there is little that you can do yourself to resolve the issue.