Mobile Trust Telecommunications (Switzerland) is the first company in the world that has developed super strong hardware info ... rmation security system for mobile phones and computers for individual users, small and medium enterprises, major corporations and state organizations. Stealthphone information security system secures data transmitted via GSM channel, landline, VoIP, radio (walkie-talkie) and satellite channels. Stealthphone system secures your conversations in e-mail, Internet-messengers and popular social networks (Facebook, Twitter, LinkedIn). Crypto Voice over GSM technology does not require Internet connection. Stealthphone combines hardware and software security and supports TEMPEST standard to effectively secure your data. read more