Dive into a 38-minute Black Hat conference talk that takes you behind the scenes of GitHub's ambitious 2FA initiative. Explore the strategic considerations, operating principles, and challenges faced when tasked with enrolling millions of developers in two-factor authentication. Gain insights into scaling a large-scale security program and learn how cross-functional teams collaborated to plan, execute, and promote this multi-year initiative. Discover valuable lessons learned six months into the program, presented by John Swanson (@swannysec), offering a unique perspective on implementing widespread security measures in the developer community.