C'est rétrograde une ligne téléphonique classique ! D'ailleurs France telecom essaye par tous les moyens de vous la basculer en ligne téléphonique ADSL. Et pourtant...

extrait : "(...) The vulnerability outlined in the NSA document concerns encryption developed in the 1980s but still used widely by cellphones that rely on technology called second-generation (2G) GSM. It is dominant in most of the world but less so in the wealthiest nations, including the United States, where newer networks such as 3G and 4G increasingly provide faster speeds and better encryption, industry officials say.

(...) Cellphone conversations long have been much easier to intercept than ones conducted on traditional telephones because the signals are broadcast through the air, making for easy collection."

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