What is OpenBSD? Operating System Security Idea Incubator Organization pf / tmux / security hardening / privilege-separation / privilege-drop / stackghost / OpenSSH / strlcpy / auditing procedures / stack-protector / OpenBGPD / OpenNTPD / isakmpd / IKEv2 / relayd / new resolver / soft-error ICMP/RST / randomized malloc / hw.sensors / hundreds more... We invent/adopt new "security ideas", complete/integrate them into the whole system, then ship a release to push the idea to maturity. ie. first OS to ship IPSEC, IPv6, crypto, SSH, strong random, stack-protector, other security mitigation methods, ... 17-year success story.