Install anti-virus software.
Malware writers are flocking to Android. We’re seeing much of what happened in the desktop world being repeated with smartphones. Android is more open, has a larger market share and is a juicer target. IPhone is a closed ecosystem, which is a good-news, bad-news scenario. Yes, Apple does more to lock down apps and prevent third-party software from exploiting key system resources, but you are trusting one company for your security. If Apple screws up, all iPhone users are in trouble. Android, on the other hand, may be less secure due to its openness, but it’s welcoming to third-party security tools. There’s no excuse not to have anti-virus software on your phone. There are plenty of free options, such as Lookout.