I would recommend doing a lot of research before trusting any security program,as I had Kaspersky mobile and it completely failed me when recently infected,(see my first post after becoming a member) not once but twice,or factory reset did not clear everything. I have since installed Malwarebites new mobile program,and have Avast as my primary. Largely because of other features,and not just antivirus. Now after reading thru Korets slides at Syscan 360, 2014, I definitely feel better about Avast because they were proactively offering bug bounties before conference,and acted quickly to pay for and fix the revealed vulnerabilities.($110,000+) The others fixed what they could find on their own,but can NOT be sure they fixed the ones Koret found. They are playing with others well being and safety,because of arrogance. I would look for post online about people getting malware with your favorite security companies installed. Be open minded,and try not to leave to much personal,(financial) info on your computer for now. Also look at having a designated,hardened browser just for shopping and banking. Or even a dedicated device for such things,that never ever surfs the web. Happy hunting. I do have a couple stand alone scanners as well,that's because I have android 4.1.1 and not likely to get any updates soon. 30% or more are still on this OS. And it is still vulnerable to heartbleed. Although Google out out a patch right away,manufactures are slow to follow. Check your own to make sure.