safari credit card expiration dates change without my permission

Hey richrozen,

As the issue is occurring within Safari, we'd first recommend checking for and removing disabling any extensions that may be installed as they could be contributing to the issue: Use Safari extensions on your Mac - Apple Support

"Uninstall or turn off extensions

Choose Safari > Settings (or Preferences), then click Extensions.

1. To turn off an extension, deselect its checkbox.
2. To uninstall an extension, select the extension and click the Uninstall button. If you can't determine what an extension does, or you don't expect to use it again, you should uninstall it."

If that doesn't help, we'd recommend removing the card from Safari and adding it again. This article explains how: Autofill Credit card info in Safari on Mac

Thanks!

Hi richrozen,

When you went to Safari Settings > Autofill, did you view your credit card info to make sure that the card was only listed once, and that the expiration date was correct? If not, select "Edit" to view.

If it looks as it should, then see if it's just one webpage which is autofilling incorrectly. It may be the website has its own method of storing your card info. Contact the website developer or company for help, if needed.

If you're not finding any reason why it's autofilling incorrectly, the next steep is to contact Apple Support, so they can look further.

Get Support

Take care!