Meredith Whittaker, president of encrypted chat service Signal, doubled down on her criticism of proposed British online safety legislation, calling the government’s plan to require a special back door to access encrypted messages “mathematically impossible” and vowing to exit the U.K. market if it becomes law.

“They would order us to implement it. We would not,” Whittaker said at the Fortune Brainstorm Tech conference in Deer Valley, Utah, this week.

In an on-stage conversation with Roy Bahat, the head of Bloomberg Beta, Whittaker said one of her primary missions is to prevent the dangerous trend of socially accepted surveillance.

(https://fortune.com/2023/07/13/signal-president-mass-surveillance-uk-law/)