As practice shows, you can not hack the computer only "suspect" - crypto GSM cellular networks is not helping to protect one hundred percent negotiations from interception and listening. Ensure the security of confidential information intended new application Signal.
Signal is a free application for iPhone open source. It provides crypto calls - protection against wiretapping and interception records. To encrypt the signal, the program uses the AES algorithm with 256-bit key and the corresponding integrity checks. Developer promises reliable and clear voice communication without interference and loss of fragments.
Most users do not see the need to ensure the safety of telephone conversations, but the relative ease with which calls can be intercepted using commercially available equipment, is a growing concern for many organizations, especially in government and the financial industry, say the developers of Open Whisper Systems.
Appendix Signal can provide encryption of voice communication on the entire signal path. It uses Wi-Fi connection or mobile connection. Confirmation of protection against wiretapping accomplished by on-screen display of two random words that must repeat the source.
In Open Whisper Systems note that Signal is open source, so check its safety can be anyone. This excludes the presence of software "bugs" that can be embedded in applications with proprietary source code and security services used to listen to conversations.
According to the developers, exit Signal users first got a free solution that turns your iPhone into a fully protected against wiretapping phones.