A bug has been found in the current version of iOS 7. This bug 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. The video above shows that it only takes a few simple steps to deactivating Find My iPhone.

This bug has been found on iPhones and iPads with iOS 7. It is not possible to replicate this bug on an iPhone with Beta version of iOS 7.1.

The bypass only works on a device that does not have Touch ID or a Passcode enabled, as the exploit requires access to the Settings menu. To avoid having Find My iPhone disabled, users should update their phones with a Passcode and install iOS 7.1 when Apple releases the software.

source [macrumors]