Some Android phones still don’t use full disk encryption

Last year Google said that it would ensure that new devices coming with Android Lollipop would have to use full disk encryption as standard – meant to ensure that criminals, police, and spy agencies cannot get unauthorised access to your private date.

In September, Google said that all devices launching with Lollipop pre-installed would have encryption on “out of the box”. The company confirmed this again in October, saying that user data partitions would be encrypted “at first boot.” The most recent first-party Android devices, e.g. the Nexus 6 smartphone and Nexus 9 tablet, do ship with encryption activated.

However, there are many third party Lollipop based Android devices being launched this week at Mobile World Congress in Barcelona, but reports have said that new phones such as the Moto E and Samsung Galaxy S6 are not being fully encrypted automatically.

Read more: http://tech.thaivisa.com/android-encryption/6068/

encryption makes the phone slower. If you don't have anything secret better don't encrypt....And if you have something really secret it won't help anyway as Google surely include a backdoor

I enforce it on all company phones. Gives you time to wipe them if the thief hasn't done it already.