Patching Home Cybersecurity Dictionary Patching Patching is a modification to software, or the underlying computer system, designed to fix a security vulnerability or a a performance issue (bug), or add new features. Usually patching is a part of software lifecycle management, and a strong strategy and plan can improve the usability and performance of an environment. From a cyber threat resilience standpoint, a robust patch management program is crucial as a significant percentage of security issues arise from systems where there is a known vulnerability and an existing patch is available. Related TermsPatch ManagementVulnerability ManagementPenetration TestingRed Team Share: Seeking Clarity? View the Cybersecurity Dictionary for top terms searched by your peers. Back to the Dictionary How Can We Help? Let us know what you need, and we will have an Optiv professional contact you shortly.