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News Link • Social Networking/Social Media

Whatsapp Just Switched on End-to-End Encryption for Hundreds of Millions of Users

•, By Andy Greenberg

After he emigrated to the U.S. and created his ultra-popular messaging system decades later, he vowed that Whatsapp would never make eavesdropping easy for anyone. Now, Whatsapp is following through on that anti-snooping promise at an unprecedented scale.

On Tuesday, Whatsapp announced that it's implementing end-to-end encryption, an upgrade to its privacy protections that makes it nearly impossible for anyone to read users' messages—even the company itself. Whatsapp will integrate the open-source software Textsecure, created by privacy-focused non-profit Open Whisper Systems, which scrambles messages with a cryptographic key that only the user can access and never leaves his or her device. The result is practically uncrackable encryption for hundreds of millions of phones and tablets that have Whatsapp installed—by some measures the world's largest-ever implementation of this standard of encryption in a messaging service.

"Whatsapp is integrating Textsecure into the most popular messaging app in the world, where people exchange billions of messages a day," says Moxie Marlinspike, Open Whisper System's creator and a well known software developer in the cryptography community. "I do think this is the largest deployment of end-to-end encryption ever."

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