[Dailydave] Seeking more info on: Devastating mobile attack under spotlight

[Gadi Evron]

On Tue, 28 Nov 2006, Nicolas RUFF wrote:
> AFAIK, there is at least one backdoor in SIM cards, that do allow data
> recovery without knowing the PIN code (and this is not the PUK code). Of
> course this has been designed for law enforcement people. Do you think
> it's in the manual ?

In the past "cracking" the SIM key was possible, resulting in possible
duplication. Today it is "impossible" (virtually impossible). Do you have 
an electronic Microscope?

There is no backdoor, unless you show me one (maybe a certain country
decided they want the SIMs created with a backdoor).