Binary authorization is a security control that allows only approved, verified software binaries to execute in a protected environment. Instead of trusting any file that reaches a server, container platform, or endpoint, the system checks whether the binary has been signed, attested, or otherwise validated against policy before it runs. If the software does not meet the required trust conditions, execution is blocked.
This matters because many intrusions succeed after an attacker injects a malicious payload, replaces a legitimate package, or runs unsigned code with elevated privileges. Binary authorization helps defenders enforce software provenance and reduce the risk of tampered updates, unauthorized tools, and supply-chain compromise. In practice, it is often used with artifact signing, build attestations, access controls, and policy engines in cloud and defense environments. It does not guarantee the code is harmless, but it raises the bar by ensuring only software that has passed the organization’s verification process can start.