The Conservative party has started using the secure messaging service Signal for its internal communications with Tory MPs, following years of leaks from WhatsApp groups.
Signal, which is an alternative to Facebook-owned WhatsApp, prides itself on its ultra-secure privacy features and has an option to make messages automatically disappear after a set period of time, making it harder to retrospectively leak conversations.
The nonprofit open source service, which is endorsed by the likes of Edward Snowden, promises highly encrypted ad-free communications and pledges to ensure no one can read user messages or see their calls. Earlier this year the co-founder of WhatsApp gave $50m (£38m) to Signal to help improve the service.
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