What is software reverse engineering?

Software reverse engineering is the process of analyzing software to understand its structure, functionality, and operation, often without access to the original source code. This technique is commonly used to discover how a program works, identify vulnerabilities, ensure compatibility, analyze malware, or recover lost documentation. Professionals use specialized tools to deconstruct executable files, inspect their components, and reconstruct higher-level representations. While reverse engineering is legal for purposes like security research and interoperability, it may be restricted by laws and software licenses in some jurisdictions.