there are currently no viruses for the iphone. only warning viruses appeared a while back on jailbroken phones but those became obsolete. non jailbroken phones cannot have a virus or anything related to it. at all. period. there is nothing the run the codes such as on computers because the iphone's filesystem is locked. nothing has access to it except itunes and what itunes puts on their unless you jailbreak it. if something tries to get on the phone without it being jailbroken, it will reject it because it runs security checks to see if its authorized by apple. the default ssh root and mobile passwords are alpine, if your jailbroken and have openssh installed and dont change those passwords, if a virus pops up for jailbroken phones, you run the risk of possibly getting it. as long as you change those passwords if your jailbroken your safe, if you dont jailbreak at all, you dont have to worry about those passwords, so your already safe.