A CSIRT (Computer Security Incident Response Team) is a specialized team focused on responding to IT security incidents. Its primary role is to detect, react to, and improve the security posture of a company’s IT systems. CSIRTs analyze security incidents, offer proactive preventive measures, and work on restoring systems after attacks. Key responsibilities include incident management, identifying and resolving vulnerabilities, and coordinating actions to minimize IT risks. Automated tools and procedures are often used to continually improve security.

The main difference between a CSIRT (Computer Security Incident Response Team) and a CERT (Computer Emergency Response Team) lies in their focus and scope. Both teams handle similar tasks, but a CERT typically operates on a national or public level, functioning as a central body for handling cyber incidents.

• CSIRT: Often set up within an organization, company, or government entity, a CSIRT focuses on the specific security needs of that entity. Its role is to identify and respond to threats within the organization, giving you tailored security strategies.
• CERT: A CERT typically works at a national or international level, giving support to multiple organizations or even entire countries to combat cyber threats. These teams tend to collaborate with government institutions, serving as a central authority that reacts to national or regional security issues. CERTs also facilitate information sharing and provide advisory services.