WhatsApp has added strong end-to-end encryption by default to its Android app.
The strongest security any major texting app has offered, it was enabled by WhatsApp partnering with Open Whisper Systems using open source code to build in the new features.
Open Whisper Systems, best known as the developer of the Signal, Redphone, and TextSecure apps, were approached by WhatsApp via TextSecure, as it has published its source code and withstood numerous public code audits, earning the app a lot of credibility in security circles. Open Whisper has said the team will continue improving its in-house apps, but the company also expects to take on more integrations like this one in the future.
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