The main information security task in manufacturing industries is ensuring continuity and safety of technological processes. Although there are a lot of specific solutions for controllers, sensors and control devices, such as fool proofing or physical isolation of critical systems, the risks typical for non-industrial systems (such as viruses and attacks) are becoming more common for plant control systems now due to the increasing use of conventional networking and software solutions (i.e. Ethernet and Windows) in industrial applications. Our vulnerability audit service for industrial systems allows to quickly developing a pilot project at a minimal cost, as it does not require the elaboration of project details or collection of vendor recommendations.