Tech | January 12, 2010 | 4 comments

Cell Phone Tapping: GSM Encryption Hacked

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GSM cellular networks in the US and Europe use the A5/1 stream cipher meant to ensure cellular calls cannot be listened into by unauthorized parties monitoring radio traffic. However, the guarantee of privacy is no longer ensured. New attack techniques were unveiled at the Hacking at Random conference in The Netherlends which would allow an attacker to decrypt cellular calls made over a GSM network. The attacker only needs the new software and about $500 in radio monitoring equipment.

http://information-security-resources.com/2010/01/11/cell-phone-tapping-gsm-encr...
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