Case Study: Wärtsilä achieves automated OT asset visibility and improved compliance for critical infrastructure with Tenable Networks

Wärtsilä Gives Customers OT Visibility to Protect Critical Infrastructures with Tenable OT Security

Wärtsilä, a global leader in marine and energy technology, faced time-consuming, error-prone OT asset management driven by spreadsheets and manual data merges. The company needed an easy, repeatable way to maintain up‑to‑date inventories, reduce supply‑chain risk, and meet rising regulatory requirements such as the EU Cyber Resilience Act.

By deploying Tenable OT Security, Wärtsilä automated active asset discovery and visualization, capturing firmware, serial numbers and configurations — even for dormant devices — and enabling IT/OT collaboration. The solution standardized and normalized inventories, cut hours of manual work per installation, improved accuracy for compliance and customer reporting, and laid the groundwork for vulnerability dashboards and an “Asset Visualization” service.

Wärtsilä

Ross Bailey

Cyber Security Expert