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Cybersecurity & Infrastructure Security Agency
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Active Assailant Security Resources

Active Assailant Security Resources

The following active assailant action guides provide the critical infrastructure community with information regarding attack vectors used by terrorists and other extremist actors as well as corresponding suggested protective measures.

Active Shooter Attacks Action Guide

PUBLICATION
The Active Shooter Attacks Action Guide illustrates ways to recognize warning signs for at-risk individuals and emphasizes the importance of seeking help and connecting with local law enforcement to prevent a future attack.
Download File (PDF, 427.14 KB)

Chemical Attacks Action Guide

PUBLICATION
A chemical attack may be executed by individuals or groups through the deliberate release of a toxic substances, such as a gas, liquid, or solid, in an attempt to cause public harm, injury, or loss of life. This action guide increases security awareness for potential attacks.
Download File (PDF, 631.43 KB)

Complex Coordinated Attacks Action Guide

PUBLICATION
The Complex Coordinated Attacks Action Guide provides the critical infrastructure community with information regarding attack vectors used by terrorists and other extremist actors as well as corresponding suggested protective measures.
Download File (PDF, 306.1 KB)

Fire as a Weapon Action Guide

APR 12, 2021 | PUBLICATION
This guide helps identify potential indicators of an attack using fire as a weapon and provides mitigation strategies and recommended response procedures.
Download File (PDF, 441.02 KB)

Hospitals and Healthcare Facilities Action Guide

PUBLICATION
Hospitals and healthcare facilities face a unique set of challenges in an active shooter incident. This Action Guide illustrates ways to recognize warning signs for at-risk individuals and emphasizes the importance of seeking help and connecting with local law enforcement.
Download File (PDF, 514.06 KB)

Mass Gatherings Action Guide

PUBLICATION
This action guide identifies how businesses can prepare for and mitigate future attacks, including recommended protective measures and actions to consider.
Download File (PDF, 528.29 KB)

Mass Gatherings: Take Charge of Your Personal Safety

DEC 17, 2020 | PUBLICATION
The Mass Gatherings: Take Charge of Your Personal Safety document increases the general public’s understanding of the immediate actions that can be taken during an incident to mitigate its impact.
Download File (PDF, 491.59 KB)

Patron Protection Resources

DEC 17, 2020 | PUBLICATION
These fact sheets provide businesses options for consideration to enhance security when it comes to protecting their business’s infrastructure during public demonstrations, their patrons in outdoor eating venues, and their patrons during the holiday shopping season.
View Files

Security and Resiliency Guide (SRG) and Annexes

PUBLICATION
The Security and Resiliency Guide and Annexes are intended to assist stakeholders to plan and implement C-IED activities within their overall public safety and emergency management approach.
View Files

Vehicle Ramming Action Guide

PUBLICATION
This action guide identifies warning signs an individual might exhibit when planning a vehicle ramming attack. It also includes suggested mitigation strategies and protective measures.
Download File (PDF, 566.75 KB)
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