How a celebrity hacker upended one of the most influential social networks

When Peiter Zatko joined Twitter as head of security in late 2020 at the urging of founder and then-CEO Jack Dorsey, he was surprised by what he discovered. Twitter, a social network with hundreds of millions of users, “was over a decade behind industry security standards,” he later testified.

​When Peiter Zatko joined Twitter as head of security in late 2020 at the urging of founder and then-CEO Jack Dorsey, he was surprised by what he discovered. Twitter, a social network with hundreds of millions of users, “was over a decade behind industry security standards,” he later testified.