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Aviation · India

Securing a greenfield OT SOC for a leading airport.

A purpose-built OT SOC environment stood up for a major Indian airport.

// Client overview

One of India's major international airports, serving as a primary global gateway for cross-border travel, trade and tourism. The airport accelerated its digital transformation to improve operational efficiency and infrastructure resilience. As its operational technology (OT) ecosystem expanded - baggage handling systems, access control, surveillance and industrial control systems - so did the need for robust cybersecurity.

The airport operated within a greenfield OT SOC environment where cybersecurity controls for operational and industrial systems were still evolving. As OT and IT systems became increasingly interconnected, the airport faced multiple cybersecurity and operational risks requiring comprehensive threat management.

Sector
Aviation
Region
India
Engagement
Cyber transformation
Services
OT Security Services · Cyber Operations · Cyber Advisory · Vulnerability Management · Endpoint Protection · Identity & Access Management · Compliance & Governance support
Technologies
OTORIO Titan (OT monitoring & asset visibility) · RemOT (secure OT remote access) · Trellix (OT-compatible AV) · OT Active Directory (OT-AD) · IEC 62443 · Purdue model
// Key challenges
Converged IT and OT networks with limited segmentation, increasing exposure to lateral cyber threats.
Unsecured OT network zones and weak access-control mechanisms.
Presence of unauthorized software on OT-connected systems.
Use of workgroup-based systems without centralized security enforcement.
Limited staff awareness of OT cybersecurity policies and operational security practices.
Lack of structured OT cybersecurity training programs.
Inadequately reviewed and documented OT network security policies.
Increased operational risk from cyberattacks capable of manipulating industrial systems and algorithms.
Safety and security concerns involving airport ground staff and critical operational systems, where certain attacks could trigger physical damage or life-threatening incidents, including blast scenarios.
// The solution · highlights
Designed a multi-layered OT security strategy covering monitoring, governance, vulnerability management, endpoint protection and compliance support while maintaining uninterrupted operational continuity.
OT SOC Operations: continuous monitoring of mission-critical systems, real-time identification and analysis of OT alerts and anomalies, severity/impact assessment with prioritized response, advanced threat-correlation across OT systems and network layers, and post-remediation validation checks.
Reporting & Governance: detailed daily OT security reports to operational and management stakeholders, plus continuous tracking of alerts, incidents, vulnerabilities and remediation progress to improve accountability.
Architecture Review Board (ARB): participation in ARB discussions for new OT initiatives, automation and upgrades; review of proposed architectures from an OT security standpoint; recommendations aligned to IEC 62443 and best practices; and close coordination with stakeholders and OEM/vendors to embed controls without disrupting operations.
OT Security Tooling & Management: OT Active Directory (OT-AD) for centralized device visibility, OT-compatible EDR/AV across eligible systems, secure remote access for OT, centralized OT asset management and lifecycle tracking, and comprehensive OT security documentation (network diagrams, asset inventories, SOPs).
OT Audits & Compliance: OT security audits to strengthen audit readiness, alignment of OT practices with globally recognized standards, and OT security gap analysis with corrective measures for audit observations.
// Outcomes
Established centralized OT asset visibility across critical airport systems.
Conducted OT-safe vulnerability assessments, minimizing operational risks.
Reviewed and hardened OT switches and firewall configurations.
Implemented OT cybersecurity controls aligned with IEC 62443.
Designed and validated OT architecture based on the Purdue Enterprise Reference Architecture.
Successfully segregated IT and OT networks, reducing cyber-risk exposure.
Implemented layered security controls to prevent unauthorized access and lateral movement.
// Key benefits
Successful segregation of IT and OT networks with defined security zones.
Strengthened network security controls across OT environments.
Improved OT asset visibility across critical airport infrastructure.
Unauthorized software risks identified and mitigated.
Enhanced endpoint protection and system hardening.
Improved centralized security oversight and governance.
Increased cybersecurity awareness through OT guidance and training initiatives.
OT network security policies and procedures updated and enforced.
Cyber-risk exposure across mission-critical operational systems significantly reduced.
// By the numbers · ROI
Automation lowered the cost per incident handled and deferred hiring of additional L1 analysts.
Time saved enabled more value-added work, reduced burnout and improved job satisfaction.
Avoidance of major incident costs - potentially USD 100,000 to USD 1 million per breach - through proactive detection and response.
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