Index Ventures led a $20m Series A round in Sublime Security.

Index Ventures, a European venture capital firm, led a $20m Series A round in Sublime Security, an AI-powered, programmable email security platform, with participation from Decibel Partners and Slow Ventures. "On the offense, Generative AI enables attackers to rapidly create diverse, sophisticated campaigns at scale, but on the defense, it's a powerful tool for automated detection, triage, and explainability. The Sublime Platform is a modern take on email security that delivers immediate out-of-the-box protection, with the added ability for teams to tailor email security controls to fit organizational needs and benefit from community-driven protections as the threat landscape evolves," Josh Kamdjou, Sublime Security Founder and CEO.