Deobfuscation is the process of undoing obfuscation to recover clearer program behavior. Obfuscated code is deliberately written to be hard to read, trace, or analyze, so deobfuscation aims to reveal the original control flow, data handling, and intent as much as possible.
In cyber security, deobfuscation is important for malware analysis, incident response, and reverse engineering. Attackers often hide payloads, commands, URLs, or encryption logic inside layers of packing, string mangling, or control-flow tricks. Analysts deobfuscate samples to understand what the code will do, identify indicators of compromise, and build detections. Defenders also use deobfuscation techniques when inspecting scripts, browser exploits, and suspicious binaries, especially when static analysis is blocked by misleading code paths or anti-analysis checks. In practice, deobfuscation may involve manual review, automated unpacking, tracing execution, or rebuilding hidden strings and logic.