The subject of security for the Android platform is far from straightforward. There's some debate about whether you really need antivirus apps on your smartphone. Much depends on whether you sideload apps, but there's no denying that malware has grown into a much greater concern since we first wrote this article back in 2012. Luckily, security apps have improved dramatically to keep pace with the new threats, so you have plenty of great protection to choose from. Check out Simon's video on his Top 5 mobile security apps.