Certificate 'serch02.biz' not trusted on iPhone

I am getting the message about certificate serch02.biz not trusted! Any one knows something about it please????



[Re-Titled by Moderator]

Original Title: serch02.biz

iPhone 12

Posted on Oct 2, 2025 10:09 AM

Reply
Question marked as Top-ranking reply

Posted on Oct 2, 2025 11:00 AM

This is probably coming from a suspicious calendar.


Go to Settings > Calendar > Accounts and delete the calendar subscriptions that you do not recognize. (Note that the name may not include the word "taxcut".)


If you don't see any subscription or suspicious account:


  • Open the Calendar app.
  • At the bottom of the screen, tap Calendars.
  • Look for a calendar that you do not recognize. Tap the More Information button “i" next to this calendar, then scroll down and tap Delete Calendar.
1 reply
Question marked as Top-ranking reply

Oct 2, 2025 11:00 AM in response to Gpapg

This is probably coming from a suspicious calendar.


Go to Settings > Calendar > Accounts and delete the calendar subscriptions that you do not recognize. (Note that the name may not include the word "taxcut".)


If you don't see any subscription or suspicious account:


  • Open the Calendar app.
  • At the bottom of the screen, tap Calendars.
  • Look for a calendar that you do not recognize. Tap the More Information button “i" next to this calendar, then scroll down and tap Delete Calendar.

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

Certificate 'serch02.biz' not trusted on iPhone

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.