A man was murdered and police are trying to break into his phone. Instead of asking the company that made the phone to grant them access, theyre using a 3D printed replica of the victims fingers to unlock the phone. On Android 4.4 5.1 the fingerprint unlock *never* expires. Even with Android 6.0 Marshmallow, there are no set requirements for when the unlock should expire. Some smartphones even store unencrypted images of users fingerprints in a non-protected folder.”]
Source: https://grahamcluley.com/police-print-murder-victims-finger-unlock-phone/