CISA 2015 sunsets: Cyber Threat sharing without a net?
October 16, 2025
The Cybersecurity Information Sharing Act of 2015 (CISA 2015) expired on September 30, 2025, after Congress missed the reauthorization deadline. That lapse removes the decade-old legal framework that encouraged and protected cyber threat information sharing among companies, Information Sharing and Analysis Organizations and Centers (ISAOs/ISACs), and the federal government.