Pronunciation: [θˈiːə͡ʊ də ɹˈɑːt] (IPA) 
Theo de Raadt is a computer programmer and founder of the OpenBSD project. The spelling of his name can be a bit tricky for non-native English speakers. "Theo" is pronounced as "tay-oh" with stressed emphasis on the first syllable. "De" is pronounced like "duh" without the "uh" sound at the end. "Raadt" is pronounced as "rahdt" with a silent "t" at the end. In IPA phonetic transcription, it is spelled /ˈteɪoʊ də rɑːt/.
Theo de Raadt is a computer programmer and software engineer known for his significant contributions to the field of open-source software, particularly as the founder and leader of the OpenBSD and OpenSSH projects. Born on May 19, 1968, in Pretoria, South Africa, de Raadt is renowned for his firm commitment to security and his unwavering emphasis on code quality and correctness.
As the creator of OpenBSD, an open-source Unix-like operating system widely regarded for its robust security features, de Raadt’s work has greatly influenced the world of computer security. He is credited with leading the development of numerous security technologies and initiatives, including the multi-platform OpenSSH software suite that enables secure remote access to computer systems.
De Raadt’s approach to software development is characterized by his uncompromising focus on code cleanliness, thoroughness, and adherence to the principles of open-source software. He places great importance on rigorous code auditing and security practices, which has helped establish a reputation of trust and reliability for the projects he leads.
Beyond his technical contributions, de Raadt is renowned for his strong personality and firm convictions, often outspoken about issues related to software freedom and his advocacy for transparent and open development practices. His unwavering dedication to security, quality, and open-source principles has made him a highly respected figure within the global technology community.
