Cybersecurity and Infrastructure Security Agency (CISA)
The Cybersecurity and Infrastructure Security Agency (CISA) is a U.S. federal agency responsible for coordinating national efforts to protect and enhance the cybersecurity and resilience of critical infrastructure across public and private sectors.
- National cybersecurity risk management guidance, advisories, and best-practice frameworks for enterprises
- Operational cyber defense support, incident coordination, and threat response for government and critical infrastructure organizations
- Security assessments, vulnerability scanning, and protective services for networks, systems, and industrial control environments
- Information sharing programs and partnerships with public- and private-sector operators of critical infrastructure
- Technical resources, training, and tools to support cybersecurity resilience and infrastructure protection planning
More About Cybersecurity and Infrastructure Security Agency (CISA)
CISA functions as the U.S. government’s civilian cybersecurity and critical infrastructure agency, working with federal, state, local, tribal, territorial, and private-sector entities to manage cyber and physical risks to critical infrastructure sectors such as energy, transportation, communications, healthcare, financial services, and government facilities. For enterprise and institutional stakeholders, CISA acts as a central coordination point for threat information, risk guidance, and technical assistance related to both information technology (IT) and Operational technology (OT) environments.
The agency publishes cybersecurity advisories, alerts, and best-practice documents that map directly into enterprise security architectures and programs, including guidance on secure configuration, zero trust architectures (security architecture), multi-factor authentication (identity and access management), software and Supply Chain Risk Management (SCRM), and cloud security practices (cloud security). CISA’s materials often reference and align with widely adopted frameworks such as the NIST Cybersecurity Framework (governance, risk, and compliance) and other federal standards, providing reference models that enterprises can use in Governance, Risk, and Compliance (GRC) efforts.
CISA operates technical services that many organizations integrate into their Security Operations (SecOps) workflows. These include vulnerability scanning and assessment offerings (vulnerability management), phishing assessments and cyber hygiene services (security awareness and testing), and incident coordination support for cyber events that affect critical infrastructure (incident response). The agency also coordinates disclosure and remediation of software vulnerabilities, providing advisories and Known Exploited Vulnerabilities (KEV) catalog content that security teams use in patch management and prioritization.
Information sharing is a core domain: CISA facilitates bidirectional sharing of threat intelligence, Indicators of Compromise (IOC), and mitigation guidance between government and industry partners (threat intelligence). This supports SecOps centers (SOCs) and managed security service providers that require current data on active exploits, malware campaigns, and vulnerabilities targeting critical infrastructure systems. CISA also issues technical alerts related to industrial control systems (ICS) and Supervisory Control and Data Acquisition (SCADA) environments (OT security), which are used by utilities and manufacturers to harden control networks.
In addition, CISA provides tools, training, and exercises that support enterprise resilience planning, including incident response planning, continuity of operations, and physical security coordination for facilities that underpin digital services. Within a directory or marketplace, CISA aligns to solution areas such as cybersecurity guidance and frameworks, vulnerability and threat advisory services, public-sector incident coordination, OT and industrial control system security, and infrastructure resilience planning. Its outputs are used by CISOs, enterprise architects, risk officers, and infrastructure leaders to benchmark posture, prioritize remediation, and coordinate with public-sector partners on cyber and physical infrastructure security.