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The purpose of patch management in cybersecurity is to ensure that security updates for software are applied. This process is critical for maintaining the security and functionality of systems and applications by addressing vulnerabilities that could be exploited by attackers. Regularly applying patches helps to mitigate risks associated with outdated software, which can include exposure to malware, unauthorized access, and data breaches.

When a software vendor identifies a security vulnerability, they often release a patch—an update that resolves the issue. Patch management involves not only the implementation of these updates but also testing, deployment, and tracking to ensure that all systems are kept up-to-date. This ongoing process contributes significantly to an organization's overall security posture by minimizing the attack surface and protecting sensitive data against potential threats.