Andrew Rubin is an American technology entrepreneur specializing in cybersecurity. He co-founded Illumio in 2013 alongside Jacob Y. Lee and others, serving as the company's CEO until 2021. Illumio is a cybersecurity company that develops zero-trust segmentation software designed to isolate workloads and prevent lateral movement by cyber threats within enterprise networks. Under Rubin's leadership, the company secured substantial venture capital funding, including investments from prominent figures like Asheem Chandna of Greylock Partners, and expanded globally, achieving unicorn status with a valuation exceeding $1 billion by 2017. Rubin has emphasized adaptive segmentation as a core defense against ransomware and breaches, positioning Illumio as a key player in modern cybersecurity architectures.

Prior to Illumio, Rubin built a career in enterprise software and security. He held senior roles at Citrix Systems, where he led product management for application delivery and security solutions, and earlier worked at Check Point Software Technologies, contributing to firewall and VPN technologies. His experience spans over two decades in the tech industry, focusing on network security and virtualization. Rubin is based in the San Francisco Bay Area, a hub for cybersecurity innovation, and continues to advise Illumio post-CEO tenure.

While details of his personal life remain private, Rubin's professional network includes connections to Silicon Valley investors and executives, underscoring his influence in the cybersecurity ecosystem. No major public controversies or legal issues are associated with him based on available records.