Case Study: Leading European Public Transportation Company secures 114-app portfolio and reduces open-source risk with CAST Highlight (CAST)

Major European transportation company secures application portfolio with CAST Highlight

A leading European public transportation company operating high‑speed rail, commuter services, and freight faced growing operational risk from a diverse portfolio of custom applications that rely on open‑source components. Managing security and obsolescence reactively was disrupting roadmaps and leaving the organization exposed ahead of a major project deadline, so the firm needed clear, proactive visibility into security and obsolescence risks across its applications.

The company deployed CAST Highlight as an open‑source “control tower” to run automated Software Composition Analysis, onboarding 114 applications in two weeks and integrating findings into its CI/CD pipeline. By feeding vulnerability and obsolescence issues directly into development workflows and monitoring portfolio trends, the firm raised OSS risk awareness, cut security and legacy‑component exposure, and improved application resilience and team agility.