No, you don't need it. Yes, it will slow down your phone. Android is very secure, and it would be pretty hard to get an actual virus, unless someone wrote it into an app that you install from a 3rd party (not from market). The chances of getting a virus after rooting increases, but not significantly.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.