Unfortunately, he doesn't appear to have pointed the finger at any provider in particular. Just hoping that my PAYG setup won't be affected too badly.

If I remember correctly. This affects older sim cards and about 500,000 estimated are still using this particular sim card.

If I remember correctly. This affects older sim cards and about 500,000 estimated are still using this particular sim card.

"Nohl said in an interview Tuesday that 500 million phones, regardless of make, could be vulnerable, based on his sample of 1,000 SIM cards from a variety of operators, mostly in Europe." http://www.networkworld.com/news/2013/072413-sim-card-vulnerabilities-easy-to-272135.html

Techincally speaking this is not new as sim-card cloning had been a problem about 15 years ago but the difference now is that it's being done wirelessly, before it had to be done with a phone that was somewhat insecure. The Ericsson A1018s was one of the key phones that allowed for simcard cloning however this flaw had been fixed with a new generation of sim cards. I believe this new technique used is probably only owkring on the same old generation of sim cards as the article would seem to suggest. I actually remember a friend and an acquaintance of mine who both were the targets of sim card cloning, my friend being on payg found that his credit had been totally drained usually about an hour after he "topped-up" so he had to contact Orange who helped him through the matter, as for the acquaintance, she was on contract and ended up with a huge bill, all I know is, it had to go to court for her.