Does my M8 with 4.4.3 have a malware scanner or antivirus built in? A friend with a iPhone 5 got a spammer virus on FB messenger. If she can have that, isn't Android more open, or is that a myth? Do I need to download lookout or something else? Mine hasn't done that but since I like messenger and shrugged off all the stuff people said about it, I'm kinda worried that can happen to me.