From: https://www.first.org/conference/

The FIRST (Forum of Incident Response and Security Teams) Annual Conference is a 4-5 day global event that brings together incident response and security professionals from around the world. Running since 1989, it is one of the longest-standing cybersecurity conferences, focusing on incident handling, vulnerability analysis, computer security, and management and policy issues. The conference rotates locations globally and features international speakers, invited talks, and keynotes from across the FIRST membership and beyond.