In cybersecurity, 'reverse' commonly refers to reverse engineering, which is the process of analyzing software, hardware, or systems to understand their structure, functionality, and operation. This is often done without access to the original source code or design documentation. Reverse engineering is used for various purposes, such as identifying security vulnerabilities, understanding malware behavior, ensuring software compatibility, or uncovering intellectual property violations. Cybersecurity professionals use reverse engineering techniques to dissect malicious code, develop patches, or create security tools. While it is a powerful tool for defenders, attackers may also use reverse engineering to find and exploit weaknesses in software.