Palo Alto Networks and Weip Tech have uncovered a hack that involves over 225,000 Apple IPhone accounts so far. This hack is accomplished with a malware called KeyRaider on jailbroken IOs devices. It is reported that "the malware intercepts iTunes traffic to steal data from random user accounts, whose devices have been compromised through installation of malware-ridden jailbreak apps from untrusted sources." Compromised accounts could ultimately be charged with bogus purchases by the attacker. Here is a link to an article that explains how to detect if your device has the virus and how to remove it.