WhatsApp is owned by Open Whisper Systems — Developer TextSecure. Its source code was along and across the broken up specialists who have not been able to find vulnerabilities in it.
The very essence of this kind of encryption is that neither Messinger nor its owners or representatives of the law will not be able to access the correspondence, but only to its participants.
Update WhatsApp is currently available only to owners of Androiddevices. When encrypting a clients under iOS and Windows Phone is unknown.
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