Error message on "Verify Certificate"

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Level 1

13 points

Error message on "Verify Certificate"

Hi all,

I'm on Mac Air, macOS High Sierra, I've received a "Verify Certificate" alert that "my calendar can't verify identity of server "p54-caldav.icloud.com", that the certificate is invalid and I could be connecting to a server that is pretending to be "p54-caldav.icloud.com" which could put my confidential information at risk."

I've done a deep system scan using Bitdefender for virus, found nothing. Is this something I should be concerned about? Please advise what should I do to troubleshoot.

Thank you!

MacBook Air, macOS High Sierra (10.13.6)

Posted on Aug 7, 2018 2:40 AM

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Answer 1

Aug 10, 2018 10:27 AM in response to GlamQ

This excellent subject-matter tutorial may explain everything you need to know.

This other excellent tutorial demonstrates how to find out the certificate details including the specific validity problem. Assuming the certificate and its email address are legit, you might be able to find out more from the admin of record by email.

Finally, if the certificate is obviously suspicious like the one shown in this article, never continue with it nor trust it and, in fact, delete it.

You can bring up the the images full size by clicking on them in each one of these webpage articles.

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Answer 2

GlamQ Author

Level 1

13 points

Aug 10, 2018 10:30 AM in response to Toot Uncommon

Hi Toot Uncommon,

Looks like this is exactly what I need! I shall explore and see if it resolves the many persistent certificate errors that my Mac has. Thanks for pointing me to the right direction. :)

GlamQ

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Answer 3

Aug 10, 2018 8:38 PM in response to GlamQ

You're welcome and thank you for the positive feedback! I was interested to learn that it's OK to delete any certificates of the login category and, if needed, they will be re-upped and potentially re-upped by new up-to-date ones.

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Error message on "Verify Certificate"

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