Millions of Sims vulnerable to hack attack
Karsten Nohl, some kind of expert, has said he's found a way to discover some Sims' digital keys by sending them a special text message with industry organisation - the GSMA - looking into it all.
"Karsten's early disclosure to the GSMA has given us an opportunity for preliminary analysis," said a spokeswoman for the association, which represents global network operators. "We have been able to consider the implications and provide guidance to those network operators and Sim vendors that may be impacted."
"Sim cards generate all the keys you use to encrypt your calls, your SMS and your internet traffic," Nohl said. "If someone can capture the encrypted data plus have access to your Sim card, they can decrypt it. Operators often argue that it's not possible to listen in on 3G or 4G calls - now with access to the Sim card, it very much is."
Nohl reckons that around an eighth of all Sim cards are vulnerable to the hack attack, but he won't be saying which ones yet because he wants operators to have the chance to address these problems first... or he's just showing off.