“A story shared by Jack Dorsey, the founder of Twitter, uncovered that the current leaders of Signal, an allegedly ‘secure’ messaging app, are activists used by the US state department for regime change abroad,” Durov wrote on his own Telegram channel.
In fact, the folks running Signal — notably Moxie Marlinspike and Meredith Whittaker — have a long history of effective security & privacy activism. Whittaker was one of the organizers of the Google Walkouts, one of the more effective pieces of tech worker activism in recent history. And Moxie has bumped heads with the US intelligence community more than once, and famously with the Saudis too.