Hello to everyone. I am seriously considering downloading an anti-virus/anti-malware app from the Google Play Store for my smartphone but as I know next to nothing about this sort of thing I would greatly appreciate any insight that anyone might be able to provide. My phone is a Samsung Galaxy S4 which has the "Samsung Security Police" as a built-in feature and is supposed to provide anti-virus and anti-malware protection and I have it set to "High" which supposedly "blocks known and potential threats". Therefore there are a few questions I would really prefer to have an answer to before I proceed. 1. Since I already have the Samsung Security Police do I really need further protection? 2. If I do install an anti-virus/anti-malware app is it possible it would conflict with the Samsung Security Police or in some way conflict with the phones operating system or performance? 3. Will these anti-virus/anti-malware apps slow down the phone or cause a significant drain on the battery? I know these are a lot of questions but its just that I'm kind of scared to add additional protection to a phone that already has built in protection without knowing if and how it might affect it. I love my S4 and definitely don't want to do anything that might screw it up. Again, any insight into any or all of these questions would be greatly appreciated and you have my thanks and gratitude in advance.