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Viktor Dukhovni is an American expert in computer security and cryptography. He is best known for his role in developing and promoting the DANE protocol, which secures email communications using DNSSEC. As a longtime contributor to OpenSSL, he has helped identify and fix critical vulnerabilities, strengthening encryption across the web. His work extends to implementing secure email protocols in mail servers like Postfix, and he has led efforts to monitor DNSSEC and DANE adoption worldwide. He currently works at Two Sigma, where he applies his expertise in secure systems and cryptographic protocols.