I was hoping someone could help me. I'm new to smartphones and I found a samsung galaxy nexus android I want to purchase. The only thing is, it's rooted. I seem to read a lot of pro's and con's about this. My main concern is security and the ability to get software updates. Is it a bad idea to buy a used rooted phone? If the person who's selling it to me wasn't careful with their security after they rooted the phone, could I end up with malicious malware on my phone? And is there any way I can unroot the phone? Any help on this is much appreciated.