Kees Cook has been working with Free Software since 1994, and is employed
by Google to work on Chrome OS Security. Before that, he worked for
Canonical as the Ubuntu Security Team's Tech Lead. He has helped admin the
mirrors on kernel.org, and sometimes hacks on Inkscape. He has written
several utilities including GOPchop and Sendpage, and contributes to
other projects including Wine, MPlayer, and OpenSSH. He's been spending
most of his time lately focused on security features in the Linux Kernel.