Definition ∞ Source code review is the systematic examination of a program’s underlying code to identify errors, vulnerabilities, or deviations from design specifications. In the context of blockchain and smart contracts, this process is critical for ensuring the security and correctness of decentralized applications. Expert auditors manually or automatically analyze the code to prevent exploits and unintended behavior.
Context ∞ Before major protocol upgrades or the launch of new decentralized finance applications, source code review is an essential step that frequently appears in crypto news. Reports on security breaches often highlight the absence or inadequacy of such reviews, underscoring their vital role in maintaining trust and protecting user assets.