I would like to hear some opinions as to the best security apps for Android. Also, who uses or doesn’t use security and why or why not?
http://www.bitdefender.in/Universal Password Manager Webroot Mobile Security
Check out MakeUseOf's Android Security Apps list.
Top 25 Android Security Apps
Protect Your Android Phone With Security Apps
My personal favorite is Lookout Mobile. I'm not sure how good it is in terms of security like Anti-Virus and stuff but I really like it's features.
The Premium service not only backups your contacts but also the photos, call history, etc. and you can easily access them via the web site or restore it to your current or a new phone. It also comes with phone locating and alarm functionality, remote lock & wipe.
You can compare the Free vs Premium features but I think at $29.99 per year it really isn't too expensive.