Tech Sector Outreach: Identifying Violent Extremist Indicators and Reporting Mechanisms for Online Service Providers
Published: Nov 21, 2025
This product is intended as a reference for the most common mobilization indicators that may be observed by online service providers.
JCAT Mission
The Joint Counterterrorism Assessment Team (JCAT) is a collaboration by NCTC, DHS, FBI, state, local, tribal, and territorial government personnel to improve information sharing and enhance public safety. The First Responder's Toolbox is an ad hoc, unclassified reference aid intended to promote counterterrorism coordination among federal, state, local, tribal, and territorial government authorities and partnerships with private sector officials in deterring, preventing, disrupting, and responding to terrorist attacks.



