best mobile antivirus?

Here's a free security suite for your phone: https://www.mylookout.com/ It's not really well-known though. The more popular ones such as F-Secure and Kaspersky Mobile Security are not free. for windows mobile you can try BitDefender Mobile Antivirus it works for mobile devices running SymbianTM or Microsoft® Windows MobileTM. Hope this helps :)

one best way is to always switch off you bluetooth unless needed.. for software anti virus for phones you can use avast mobile.. =)