Locate the phone on a map (often down to the building it’s in) via GPS.Display a message on the phone’s screen with instructions about where to return the phone.Have the phone play a sound (useful if you think it’s nearby).Set a passcode over the Internet, so even if you didn’t protect your phone before it was stolen, you can now prevent a thief from using it.Delete all data on your phone over the Internet.

It’s not very likely that a thief will be able to the cards you have stored. Apple Pay is super secure thanks to the Touch ID or Face ID authentication systems. It’s extremely difficult to fake a fingerprint or face with it, so you’re likely OK, but better safe than sorry. Luckily, you can remove a card pretty easily using iCloud (just follow the instructions in the headline). When you get your phone back, or get a new one, just set up Apple Pay again. This includes any accounts or other data that may be stored on your iPhone and thus could be accessible by the thief. Make sure to change your online passwords: email (to stop the thief from sending mail from your phone), Apple ID, online banking, medical records, etc. Even though it’s inconvenient, it’s better to limit the chances for problems than let a thief steal even more from you. Setting a passcode on your iPhone is a basic security measure you can—and absolutely should—take right now (if you haven’t already done so). With a passcode set, someone trying to access your phone will need to enter the code to get at your data. If they don’t know the code, they won’t get in. If you’re running iOS 4 and higher (and basically everyone is), you can turn off the 4-digit Simple Passcode and use a more complex—and thus more secure—combination of letters and numbers. While it’s best if you do this before your iPhone is stolen, you can use Find My iPhone to set a passcode over the Internet, too.  For even better security, on models that support it, you should use either:

Touch ID fingerprint sensor Face ID facial recognition.

To really make sure that a thief can’t get your data, set your iPhone to automatically delete all its data when the passcode is entered incorrectly 10 times. If you’re not good at remembering your passcode you may want to be careful, but this is one of the best ways to protect your phone. You can add this setting when you create a passcode, or follow these steps: