Sonatype Repository Firewall helps protect your software supply chain by blocking open source malware and other high-risk components before they enter your artifact repositories and development workflows. Repository Firewall evaluates components at the point of download using automated analysis plus policy enforcement, so risky packages can be prevented (or quarantined) before they spread across builds, teams, and environments. Key capabilities: - Detect and block known and suspicious open source malware before it reaches developers - Enforce security, license, and quality policies early, at the repository perimeter - Identify risky or malicious components already present in repositories to support cleanup and response - Provide clear, auditable policy decisions and guidance so teams understand why a component was blocked and what to use instead - Integrate with common repository managers (including Nexus Repository and JFrog Artifactory) to add protection without slowing delivery Repository Firewall is ideal for organizations that depend heavily on public registries and want a preventative control to reduce supply chain attacks, lower rework, and keep development moving with trusted components.