You might have heard of Edward Snowden. He leaked thousands of documents that revealed the extent of the National Security Agency’s spying programs. This article gathered his major points on staying secure and getting rid of spying online.

Voice calls and text messages encryption. Today, there are plenty of applications with the encryption functions. And some of them most of us use on a daily basis, like WhatsApp, Telegram, ICQ. Snowden’s choice is Signal messenger (available for both iOS and Android). The application was developed by Open Whisper Systems, and the company also offers calls encryption.

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