Happy 9th Anniversary, CTA: A Celebration of Collaboration in Cyber Defense

This article reflects on the nine-year journey of the Cyber Threat Alliance (CTA), founded in 2014 by Palo Alto Networks, Fortinet, McAfee (Intel Security), and Symantec to enable high-fidelity threat intelligence sharing among competitors for collective defense. It describes the establishment of governance, legal frameworks, and independent operations under the leadership of Michael Daniel, and highlights CTA’s evolution into a globally influential body spanning data sharing, technical collaboration, and cybersecurity policy. The piece underscores that collaboration raises adversary costs and strengthens ecosystem security, and calls members to remain engaged through intelligence sharing and technical/policy contributions. Authored by Kathi Whitbey of Unit 42, it includes an anniversary acknowledgment and a resource link emphasizing the benefits of threat intel sharing.