Even if you don't use encryption, here is why you need it:
http://www.popularmechanics.com/tech...ry-reset-flaw/
I encrypted both a 7" 2013 HD and 6" HD Amazon tablet before selling them. It is the only way to be sure data cannot be recovered from them. There was "0" benefit in Amazon removing this feature for customers. Absolutely astounded they did this in the current environment. My remaining Fire tablet will be wiped and Cyanogenmod put on it in the future. Will never buy another Amazon tablet or device.