John Adams is an independent security advisor, focusing on information security, user privacy, and secure distributed systems.

As one of the earliest engineers at Twitter, he spent the last seven years building Twitter’s Information Security team and ensuring secure operations at scale. He now advises and assists early-stage companies (and non-profits) in developing solid information security programs that protect their users. He is a contributing author to Web Operations (O’Reilly) and as a frequent public speaker has given many talks on security and reliability at scale at conferences such as RSA, Velocity, Web 2.0, Usenix LISA, and Black Hat.