Ev Kontsevoy

Ev Kontsevoy is a software entrepreneur and infrastructure-security practitioner known for co-founding Teleport. Identity-Native Infrastructure Access Management, written with Sakshyam Shah and Peter Conrad, turns experience with distributed systems into a practical account of modern access control. Its 2023 first edition from O'Reilly Media carries the subtitle Preventing Breaches by Eliminating Secrets and Adopting Zero Trust. The book organizes access around connectivity, authentication, authorization, and audit, then explains how identity-based certificates can replace scattered long-lived credentials. Its examples move across servers, databases, Kubernetes workloads, and internal applications before a final case study applies the principles to Teleport. Kontsevoy and his collaborators write for engineers and security teams that must manage hybrid infrastructure without creating a separate trust model for every layer. The emphasis is architectural rather than product-only: identity proof, short-lived access, policy, and recorded sessions are presented as related parts of one system whose security must remain usable at scale.