Twitter cofounder Jack Dorsey used Goose, Block's AI code editing tool, to develop his new messaging platform. He says it worked within a day.

Dorsey admitted that his new messaging app had not been reviewed or tested for security issues prior to its launch.

One security expert, Alex Radocea, tested Bitchat and discovered that someone could pretend to be someone else on the app. This is because Bitchat's system for verifying identity,