In fact, when Marlinspike made his debut visit to RSA 20 years ago, as a teenager, he wasn’t invited. Lured by the promise of seeing his cryptographer heroes in person, he snuck in, somehow ...

Marlinspike is the C.E.O. of Signal, ... Marlinspike was living in Pittsburgh, in a derelict, eight-bedroom, three-story mansion that he shared with a few people.