Before production deployment of the Signstar system, ideally an audit by third-party security researchers should take place.

Such an audit should encompass gray-box testing of the entire hardware test system and its update mechanism, as well as a code audit of the Signstar code base. Security audits should be carried out by professional security labs with a public track record and an established understanding of the underlying technology and involved programming languages.

As the costs of such an audit are estimated at over €100.000, a sponsored code audit should be applied for. A missing audit should not circumvent deployment, but instead be sought after in the future.