Signal Chief Meredith Whittaker Could Use Some Backup in the Fight for Encryption

I was about to sit down for coffee in Brooklyn with Meredith Whittaker when she started apologizing for the messages blowing up her phone. “Sorry, we’re launching our post-quantum protocol today,” she said while tapping away in—what else—her Signal app.

Whittaker, the president of the Signal Foundation, the nonprofit behind the world’s most heavily encrypted messaging app, came up for air a few minutes later. She explained that while quantum computers capable of breaking Signal’s encryption standards may not exist …

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