Forensic examiners are able to bypass passcodes on some of those devices using a variety of forensic techniques.
This process can be done by Google remotely and allows forensic examiners to view the contents of a equipment.
Even though users need to keep in mind to turn on the disk encryption setting.
This way investigators can gain access to data on the gear.
A post from Googles Adrian Ludwig attempted to clarify the situation.
This is the case whether or not the gear is encrypted, and for all versions of Android.
There are some devicesthat have been configured to use a pattern to unlock.
Until Android L, pattern unlock did provide a recovery option with the Google account.
Also, the full disk encryption is enabled by default.
It will slow your hardware down a little, though.
source: www.techworm.net