In 2013, co-founders Andrew Rubin and PJ Kirner started Illumio with a simple but powerful insight: breaches are inevitable. As cloud computing, hybrid IT environments, and now GenAI transformed the IT landscape, they realized that conventional security tools like firewalls, EDRs, and SIEMs were failing. These tools gave only surface-level visibility into critical traffic flows and even less control over threats that spread through these pathways. Rather than trying and failing to prevent every cyberattack, they founded Illumio to simplify microsegmentation and help organizations reduce the impact of inevitable breaches through effective containment.
Today, Illumio stands as the world leader in breach containment, providing the first and only platform built specifically for this purpose. Powered by an AI security graph, Illumio's platform identifies and contains threats across hybrid, multi-cloud environments before attacks can spread and become disasters. The company enables Zero Trust journeys for organizations globally, protecting critical applications, workloads, and assets. Illumio's approach has earned recognition as a Leader in the Forrester Wave for Microsegmentation and a Customers' Choice in the 2026 Gartner Peer Insights for Network Security Microsegmentation, proving that while breaches may be inevitable, disasters are optional.