GSM encryption is also pretty broken, e.g. > In 2006 Elad Barkan, Eli Biham and Nathan Keller demonstrated attacks against A5/1, A5/3, or even GPRS that allow

GSM encryption is also pretty broken, e.g. > In 2006 Elad Barkan, Eli Biham and Nathan Keller demonstrated attacks against A5/1, A5/3, or even GPRS that allow attackers to tap GSM mobile phone conversations and decrypt them either in real-time, or at any later time https://en.wikipedia.org/wiki/A5/1 https://en.wikipedia.org/wiki/A5/1