iPhone 8 SIM card data and security concerns after trade-in

I recently traded in an iphone 8, but forgot to remove the sim card. The 8’s data was transfered to the new phone, and was then factory reset. What information is on an iphone 8 sim card? Is there a security risk if someone accesses that data?

Posted on Feb 7, 2026 7:10 PM

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iPhone 8 SIM card data and security concerns after trade-in

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