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Level 1

33 points

Cannot Verify Server Identity: version.taxcut.com

After upgrading to iOS 14 a few days ago, I am seeing this error message multiple times per day, usually right after unlocking my device:

Cannot Verify Server Identity

The identity of "version.taxcut.com"

cannot be verified. Review the

certificate details to continue.

I've tried quitting all apps and clearing safari's history with no effect.

I don't have taxcut installed on my phone, nor any other H&R Block software, so I assume this is some type of ad being retrieved. The certificate is an Akamai certificate, whose SAN doesn't match version.taxcut.com (only a few akamai domains).

How do I get this to stop popping up or at least trace which app is causing this so I can delete it? I have no intention of accepting an invalid certificate.

iPhone 11

Posted on Sep 25, 2020 6:47 AM

Top-ranking reply

ssd550 Author

Level 1

33 points

Posted on Sep 27, 2020 3:03 PM

I think I've managed to track this down (thanks to using a proxy on my network). At some point in time I had subscribed to the Taxcut calendar (probably as part of using Taxcut) and the Apple Calendar app on my iPhone (which I do not use) was checking it a few times a day. Apparently the certificate (which is tied to SAN's for Akamai and not version.taxcut.com) is not accepted by iOS 14, and that makes sense. Likely a misconfiguration on Akamai or H&R Block's end.

Solution: unsubscribe from (or delete) the Taxcut calendar from your Apple Calendar app (not Google Calendar).

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Cannot Verify Server Identity: version.taxcut.com

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