Android Security: Six Tips to Protect Your Google Phone

I can never stress enough, whether it's your phone or your computer, any technological device that connects to a network is susceptible to security issues, so it's always a good idea to lock it down and follow guidelines to ensure that you're device is protected at least against the most obvious issues.

This article gives some guidelines on how to secure your device:
http://www.cio.com/article/675129/Android_Security_Six_Tips_to_Protect_Your_Google_Phone

Note: All the steps he's described on that site are great tips, and necessary to securing your android phone (especially antivirus, password, etc...), however, one really stuck out at me, owner information should nearly always be displayed on the lock screen, you never know when this might come in handy, i.e. if you loose your phone, however not all android phones actually have this feature and you may require an additional app to display that information.