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Cybersecurity Act Expires Amid Government Shutdown, Threats Loom

10/5/2025

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Summary

Story summary

Cybersecurity Information Sharing Act (CISA 2015) expired as the government shutdown began, weakening defenses.
Lawmakers failed to agree on reauthorization terms despite bipartisan support and urgency, leaving hopes for a compromise to extend CISA 2015.
Firms hesitate to share threat data without CISA protections, risking vulnerabilities in U.S. critical infrastructure; Halcyon and CrowdStrike plan to continue sharing temporarily.

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Story summary

Cybersecurity Information Sharing Act (CISA 2015) expired as the government shutdown began, weakening defenses.
Lawmakers failed to agree on reauthorization terms despite bipartisan support and urgency, leaving hopes for a compromise to extend CISA 2015.
Firms hesitate to share threat data without CISA protections, risking vulnerabilities in U.S. critical infrastructure; Halcyon and CrowdStrike plan to continue sharing temporarily.