Theo de Raadt country of citizenship Canada
Theo de Raadt (; Dutch: [ˈteː.joː dəˈraːt]; born May 19, 1968) is a South African-born software engineer who lives in Calgary, Alberta, Canada. He is the founder and leader of the OpenBSD and OpenSSH projects and was also a founding member of NetBSD. In 2004, De Raadt won the Free Software Award for his work on OpenBSD and OpenSSH.
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