Ivan Ristic

Ivan Ristic writes computer security books and builds security products. His book Bulletproof TLS and PKI, the result of more than a decade of research and study, is widely recognised as the de-facto SSL/TLS and PKI reference manual. His work on SSL Labs made hundreds of thousands of web sites more secure. Before that, he created ModSecurity, a leading open source web application firewall.

More recently, Ivan founded Hardenize, a platform for continuous security monitoring that provides free assessments to everyone. He's a member of Let's Encrypt's technical advisory board.