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Transports Publics Genevois - tpg - is among Switzerland’s largest public transportation operators, managing the daily movement of over 600,000 passengers across Geneva and neighboring France. With a fleet exceeding 450 vehicles, including trams, buses, electric buses, and trolleybuses, tpg’s infrastructure is integrally linked to Geneva’s public services. Thus, cybersecurity is essential not only for operational continuity but also for public safety and the State’s reputation.
In 2023, tpg initiated a confidential, high-stakes search for a trusted partner to replace its SOC with a fully managed, 24/7 Security Operations Center capable of protecting their diverse IT and OT environments. Out of eight carefully selected vendors, Senthorus emerged as the standout

Senthorus, the managed security services provider, played a pivotal role in establishing the 24/7 SOC for tpg. Leveraging ELCA’s 55+-year history and its workforce of 2,300 professionals, Senthorus combined a strong local presence with global cybersecurity expertise, satisfying the stringent requirements of public sector security. This combination of local trust and international standards made Senthorus the ideal partner for tpg’s SOC transformation.choice.
Complex IT/OT Environment
tpg’s environment integrates numerous traditional IT and specialized OT systems managing vehicle telemetry, operational control, and infrastructure monitoring. This architectural complexity introduced significant challenges in centralizing detection, ensuring consistent threat visibility, and securing communications across siloed platforms.
The Senthorus Solution
Senthorus delivered a flexible, future-ready SOC tailored specifically to tpg’s requirements, security maturity, and regulatory framework:
Additionally, Senthorus collaborated with tpg to improve tpg security standards by laying a robust foundation for effective detection, event correlation, and incident response. This collaborative approach ensured a seamless and impactful operational transition.
From the outset, the setup process was smooth, structured, and executed with minimal disruption to our operations. Senthorus demonstrated deep technical expertise, clear communication, and dedication to our specific security requirements.
Cyber Security Program Director
tpg

Transitioning from an 8x5 SOC model to a fully managed, 24/7 Security Operations Center, tpg significantly enhanced its threat visibility and response capabilities. The coverage increased dramatically, from 24% to 100%, ensuring continuous monitoring and quicker incident response. Remarkably, 30% of alerts were managed in real-time, and 27.5% of all alerts were triaged and resolved outside regular business hours, highlighting the critical value of round-the-clock monitoring in minimizing vulnerabilities during nights, weekends, and holidays.
This strategic output notably strengthened tpg’s cyber resilience and provided operational peace of mind.
Since implementation, the SOC/MSSP services have significantly improved our threat visibility, response times, and overall cyber resilience. The 24/7 monitoring, proactive threat hunting, and incident management have exceeded our expectations.
Cyber Security Program Director
tpg
Contact our expert
General Manager Senthorus
Meet Oliver SPIELMANN, our General Manager for Senthorus. Contact Oliver to discuss how he can help propel your cybersecurity initiatives forward.