You Have a Cybersecurity Incident. Now What?

Cybersecurity incidents are dynamic. Some are characterized by speed, while others have longevity as a hallmark. In many cases, consequential decisions are made quickly, often with incomplete information, limited staff, and intense pressure to keep essential services running.

For U.S. State, Local, Tribal, and Territorial (SLTT) organizations, the difference between prolonged disruption and rapid stabilization rarely comes down to tools alone. It depends on early awareness, trusted coordination, and effective response.

This resource outlines what typically happens at the onset of a cybersecurity incident, where organizations struggle most, and how adopting a Collective Cyber Defense approach that is informed by the Multi-State Information Sharing and Analysis Center^® (MS-ISAC^®) can change outcomes, especially for under‑resourced teams.

The MS‑ISAC does not replace local authority or decision‑making. It strengthens it by ensuring leaders never have to respond without context, resources, or support.