WhatsApp, the world's most popular instant messaging platform, has begun encrypting all its data by default, a move that privacy advocates say would aid dissidents and human-rights activists seeking to protect their communications from governments and hackers alike.
Open Whisper Systems, a group of software developers, said on Tuesday it had partnered with the Silicon Valley company to build in end-to-end encryption that will make it impossible for foreign governments as well as US agencies to intercept text messages, even with a warrant.
Read also:
• FBI boss warns against phone encryption + video
• Apple, Google lock themselves out of own gadgets
The move follows announcements by Apple and Google that they were encrypting by default data stored on iPhones and Android devices.
Law enforcement officials have warned that the encryption is hobbling legitimate investigations of criminal suspects, and FBI Director James Comey said recently that the "post-Snowden pendulum has swung too far," referring to tech companies' reactions to the revelations of widespread government surveillance by former National Security Agency contractor Edward Snowden.