A bug in the current version of iOS 7 appears to allow users to disable Find my iPhone on a device without typing in a password, which effectively hides it from being located on iCloud.com.

This bug is dangerous and extremely easy to reproduce. All the more reason to keep a strong passcode on if you’re running iOS 7.0.4.

It appears to be fixed in iOS 7.1, but I hope Apple will rush a smaller update if 7.1 really isn’t going to be out until March, as rumors have been suggesting.