Millions of mobile phones may be vulnerable to spying due to the use of outdated, 1970s-era cryptography, according to new research due to be presented at the Black Hat security conference.
![](https://www.tahawultech.com/wp-content/uploads/2013/07/SIM-Cards-1-840x440.jpg)
Millions of mobile phones may be vulnerable to spying due to the use of outdated, 1970s-era cryptography, according to new research due to be presented at the Black Hat security conference.
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