Pillar Security to join Vanta in $150 million AI security deal
The AMW Read
The acquisition materially changes Pillar's distribution and connects AI security controls to an established governance platform.
Named counterparties: Vanta
Pillar Security to join Vanta in $150 million AI security deal
Vanta has signed a definitive agreement to acquire Israeli startup Pillar Security for approximately $150 million in cash and shares, Calcalist reported. Pillar helps organizations find AI systems, test them against attacks, and protect them during operation. After the deal closes, Pillar will become Vanta's Israeli research and development center. Its founders, Ziv Karliner and Dor Sarig, will lead AI security development.
The deal brings AI security controls into a platform used for security, risk, and compliance management. Vanta says it serves more than 20,000 customers and plans to integrate Pillar's technology throughout 2027. The combination could help organizations connect governance policies to tests and monitoring of agent behavior. That connection matters as agents gain access to sensitive data and business systems. The planned integration and its customer impact remain to be demonstrated.
Builders and investors should watch how Vanta links its planned AI inventory to runtime controls and audit evidence. Vanta plans to introduce the inventory and runtime monitoring in January 2027. The inventory is intended to map AI applications, models, agents, skills, and Model Context Protocol servers. Pillar's research also identified vulnerabilities in AI-powered development tools that vendors subsequently patched, illustrating why controls must account for actions beyond an agent's designated environment.