Hopper Security is a company focused on open source software (OSS) risk management, specifically addressing the challenge of maintaining secure open source library dependencies without requiring teams to perform disruptive version upgrades. The core problem Hopper addresses is that fixing vulnerabilities in open source libraries traditionally requires upgrading to newer versions, which introduces risks such as API changes, behavioral regressions, breaking changes, and the possibility of pulling in compromised or malicious packages. Hopper's approach is to deliver patched, secured versions of the exact library versions teams are already using — preserving the same version number while eliminating CVEs and malware risks without introducing breaking changes. Hopper operates what it describes as a fleet of AI-based autonomous maintainers that perform the following functions: - Analyze vulnerabilities and exploit conditions in open source libraries - Produce safe, non-breaking patches for identified issues - Build and test every patched version - Verify that the vulnerability has been eliminated The platform provides evidence artifacts including upstream and community fix references, code diffs, build information, test results, and exploit validation to support security and engineering teams in auditing and compliance. The solution targets enterprise software teams, with distinct value propositions for security teams (autonomous vulnerability closure with clear evidence), engineering teams (no risky upgrades or surprise regressions), and leadership (cleaner audits and lower maintenance costs). Customers shown on the website include organizations such as BeyondTrust and Wells Fargo, among others.