License compliance is the practice of checking whether an open-source component’s license allows the way a team plans to use, modify, and distribute it. It is not just a legal review; in software security programs, it is part of dependency governance because a package can be technically safe to run but still unusable in a product release if its license terms are incompatible.
This matters in cyber security because release teams, legal teams, and security teams all need to know what is being shipped. A bad license mix can force code removal, delay patches, or block deployment, which can leave vulnerable dependencies in place longer than intended. In practice, Software Composition Analysis tools help by identifying licenses, flagging policy conflicts, and gating builds before noncompliant code reaches production.