Security architecture looks elegant on whiteboards. Defense in depth, zero trust, least privilege—principles that make sense until they encounter production systems built over years by dozens of teams.
The challenge isn’t designing secure systems. It’s designing systems that remain secure as they evolve, scale, and get operated by people who didn’t build them.
This requires treating security as infrastructure, not as controls. The most secure systems are often invisible. They don’t require engineers to think about security because the secure path is the only path available.