Smartcard researcher Karsten Nohl has featured on Naked Security before. Nohls latest hacking efforts have apparently involved studying nearly 1000 mobile phone SIM cards over a period of two years. He has found a vulnerability in the Java sandbox of some SIM cards that would allow his malware to access data that is supposed to locked down so it can be used only by one specific applet. He may be able to infect your device with SIM-borne malware, but also to give that malware root-like, or administrator-level, powers.”]