CISA

CISA is an acronym that can refer to two widely recognized entities in the fields of information security and government operations: the Cybersecurity and Infrastructure Security Agency, a United States federal agency, and the Certified Information Systems Auditor credential, issued by ISACA.

The Cybersecurity and Infrastructure Security Agency (CISA) is a U.S. federal agency within the Department of Homeland Security. Established in 2018 as part of a DHS reorganization, its mission is to lead national efforts to protect and strengthen the nation’s cybersecurity and critical infrastructure. CISA coordinates with federal, state, local, tribal, and territorial partners, collaborates with the private sector, and publishes guidance, alerts, and best practices. It conducts risk assessments, supports incident response and recovery, and oversees programs aimed at enhancing resilience across critical infrastructure sectors and national networks.

The Certified Information Systems Auditor (CISA) is a professional credential awarded by ISACA, an international professional association for information systems governance, risk management, and security. The certification recognizes expertise in information systems auditing, control, and assurance. Candidates typically must pass the CISA examination, adhere to ISACA’s code of ethics, and earn continuing professional education to maintain the credential. The exam and credential cover topics such as information systems auditing processes, IT governance and management, information systems acquisition, development and implementation, information systems operations and maintenance, and information security and protection of information assets. CISA is widely regarded in fields such as IT auditing, governance, risk management, and security, and holders often pursue roles in audits, risk assessment, and compliance.

In summary, CISA commonly denotes both a U.S. government agency focused on cybersecurity and infrastructure protection, and a professional audit credential for information systems professionals.