Skip to main content
U.S. flag

An official website of the United States government

Here’s how you know

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

HTTPS

Secure .gov websites use HTTPS
A lock (LockA locked padlock) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Free Cyber ServicesSecure by design Secure Our WorldShields UpReport A Cyber Issue

Cybersecurity & Infrastructure Security Agency logo America’s Cyber Security Defense Agency National Coordinator For Critical Infrastructure Security and ResilienceCybersecurity & Infrastructure Security Agency logo America’s Cyber Security Defense Agency National Coordinator For Critical Infrastructure Security and Resilience
CISA Logo

Search

 

America's Cyber Defense Agency
 
  • Topics
    Cybersecurity Best Practices
    Cyber Threats and Advisories
    Critical Infrastructure Security and Resilience
    Election Security
    Emergency Communications
    Industrial Control Systems
    Information and Communications Technology Supply Chain Security
    Partnerships and Collaboration
    Physical Security
    Risk Management
    How can we help?
    GovernmentEducational InstitutionsIndustryState, Local, Tribal, and TerritorialIndividuals and FamiliesSmall and Medium BusinessesFind Help LocallyFaith-Based CommunityExecutivesHigh-Risk Communities
  • Spotlight
  • Resources & Tools
    All Resources & Tools
    Services
    Programs
    Resources
    Training
    Groups
  • News & Events
    News
    Events
    Cybersecurity Alerts & Advisories
    Directives
    Request a CISA Speaker
    Congressional Testimony
    CISA Conferences
    CISA Live!
  • Careers
    Benefits & Perks
    HireVue Applicant Reasonable Accommodations Process
    Hiring
    Resume & Application Tips
    Students & Recent Graduates
    Veteran and Military Spouses
  • About
    Divisions & Offices
    Regions
    Leadership
    Doing Business with CISA
    Site Links
    CISA GitHub
    CISA Central
    Contact Us
    Subscribe
    Transparency and Accountability
    Policies & Plans

Free Cyber ServicesSecure by design Secure Our WorldShields UpReport A Cyber Issue

Breadcrumb
  1. Home
  2. Topics
  3. Critical Infrastructure Security and Resilience
Share:
Highway roads lit up at night

Critical Infrastructure Security and Resilience

CISA provides guidance to support state, local, and industry partners in identifying critical infrastructure needed to maintain the functions Americans depend on daily.

Critical Infrastructure Security and Resilience

  • Critical Infrastructure Sectors
  • Cybersecurity for K-12 Education
  • Healthcare and Public Health Cybersecurity
  • Protecting Our Future: Cybersecurity for K-12
  • Water and Wastewater Cybersecurity
  • Chemical Security
  • Resilience Services
  • Federal Facility Security
  • Extreme Weather

Critical Infrastructure are those assets, systems, and networks that provide functions necessary for our way of life. There are 16 critical infrastructure sectors that are part of a complex, interconnected ecosystem and any threat to these sectors could have potentially debilitating national security, economic, and public health or safety consequences. CISA provides guidance to support state, local, and industry partners in identifying the critical infrastructure sectors and the essential workers needed to maintain the services and functions Americans depend on daily.

Night view of New York City skyline with glowing cyber network illustrations

16 Critical Infrastructure Sectors

There are 16 critical infrastructure sectors that are part of a complex, interconnected ecosystem.

Learn More

Whistleblower Retaliation

If you work in any of these Critical Infrastructure Sectors and you feel you’ve been retaliated against for raising concerns to your employer or regulators about critical infrastructure, you may contact the U.S. Department of Labor Occupational Safety and Health Administration (OSHA).  OSHA’s Whistleblower Protection Program enforces over 20 anti-retaliation statutes that may protect your report. More information can be found at the link below. Complaints with OSHA can be filed online.

Learn more

Featured Content

Learn about important initiatives that support and protect our vital critical infrastructure systems.

Shields Ready

Shields Ready

Shields Ready drives action at the intersection of critical infrastructure resilience and national preparedness. The focus is on making resilience during incidents a reality by taking action before incidents occur.

New K-12 Cybersecurity.

Cybersecurity for K-12

CISA is placing a focus on working with the K-12 education sector to help raise awareness and understanding of the risks as well as to change behaviors that put us at risk of phishing and other online attacks.

Healthcare and Public Health Cyber Security

Healthcare and Public Health Cybersecurity

To help improve cybersecurity within the HPH sector, CISA and our partners are working together to deliver tools, resources, training, and information that can help organizations within this sector.

Water and Wastewater Cybersecurity

Water and Wastewater Cybersecurity

This toolkit highlights the most relevant CISA and EPA resources to protect against, and reduce impacts from, threats posed by malicious cyber actors looking to attack water and wastewater systems.

News and Alerts

Check out the latest blogs, press releases, and alerts and advisories from CISA.

More Critical Infrastructure News

CISA Through the Years: Policy and Impact

JAN 10, 2025 | BLOG

New Resilient Power Guidance Added to the CISA Resilient Toolkit Portal

NOV 22, 2024 | BLOG

CISA Releases the Marine Transportation System Resilience Assessment Guide

JUL 02, 2024 | PRESS RELEASE

Looking Ahead to Better Prepare Today

JUL 01, 2024 | BLOG
More Critical Infrastructure News

Critical Infrastructure Exercises

CISA works with partners to design and conduct exercises that range from small-scale, discussion-based exercises to large-scale, operations-based exercises. CISA also offers a wide portfolio of downloadable CISA Tabletop Exercise Packages (CTEPs) to serve as an off-the-shelf solution for a variety of stakeholders’ exercise needs.

See all Critical Infrastructure Exercises

Cybersecurity Scenarios

AUG 15, 2023 | PUBLICATION, EXERCISE, TRAINING
Cybersecurity Scenarios These CTEPs include cybersecurity-based scenarios that incorporate various cyber threat vectors including ransomware, insider threats, phishing, and Industrial Control System (ICS) compromise. There are also sector-specific cybersecurity scenarios for elec
View Files

Physical Security Scenarios

FEB 02, 2023 | PUBLICATION, EXERCISE, TRAINING
The physical security Situation Manuals cover topics including active shooters, vehicle ramming, improvised explosive devices (IEDs), unmanned aerial systems (UASs), and more.
View Files

Cyber-Physical Convergence Scenarios

FEB 02, 2023 | PUBLICATION, EXERCISE, TRAINING
Convergence CTEPs are those specifically designed to discuss the physical impacts resulting from a cyber threat vector, or cyber impacts resulting from a physical threat vector.
View Files

CISA Tabletop Exercise Package Documentation

OTHER
CTEP package documentation allows users to leverage pre-built templates to develop a full understanding of roles and responsibilities for exercise planners, facilitators/evaluators, and participants. Your exercise planning team can fully develop your own tabletop exercise.
See all Critical Infrastructure Exercises

Services

CISA offers a variety of services to support critical infrastructure resiliency and security.

View all services

Assist Visits

INCREASE YOUR RESILIENCE, ASSESS YOUR RISK LEVEL
Contact: central@cisa.dhs.gov
CISA Assist Visits help critical infrastructure owners and operators understand the importance of their facility, how their service fits into a critical infrastructure sector, and the CISA resources available to enhance their security and resilience.
Foundational

Exercise Planning and Conduct Support Services

INCREASE YOUR RESILIENCE
Contact: cisa.exercises@mail.cisa.dhs.gov
CISA provides end-to-end exercise planning and conduct support to assist stakeholders in examining their cybersecurity and physical security plans and capabilities.
Go to CISA Exercises
Foundational, Intermediate, Advanced

Infrastructure Survey Tool (IST)

INCREASE YOUR RESILIENCE, ASSESS YOUR RISK LEVEL
The Infrastructure Survey Tool (IST) is a voluntary, web-based assessment to identify and document the overall security and resilience of a facility.
Foundational

Multi-Asset and System Assessment (MASA)

INCREASE YOUR RESILIENCE
Contact: ISDAssessments@cisa.dhs.gov
The Multi-Asset and System Assessment (MASA) is an interactive decision analysis tool intended for systems or campuses with a single owner to assess the enterprise as a whole and its individual assets.
Intermediate
View all services

Contact CISA Central

CISA Central is the simplest way for critical infrastructure partners and stakeholders to engage with CISA. Please contact Central@cisa.gov.

CISA Central
Return to top
  • Topics
  • Spotlight
  • Resources & Tools
  • News & Events
  • Careers
  • About
Cybersecurity & Infrastructure Security Agency
  • Facebook
  • X
  • LinkedIn
  • YouTube
  • Instagram
  • RSS
CISA Central 1-844-Say-CISA SayCISA@cisa.dhs.gov
DHS Seal
CISA.gov
An official website of the U.S. Department of Homeland Security
  • About CISA
  • Budget and Performance
  • DHS.gov
  • FOIA Requests
  • No FEAR Act
  • Office of Inspector General
  • Privacy Policy
  • Subscribe
  • The White House
  • USA.gov
  • Website Feedback