Cybersecurity audits are structured assessments that evaluate whether EV charging systems meet defined security requirements, reduce cyber risk, and have evidence-based controls in place. For EV charging, audits typically cover the charger hardware and firmware, the Charge Point Management System (CPMS), mobile/web apps, cloud infrastructure, and operational processes such as access control, logging, incident response, and the secure update pipeline.
What Are Cybersecurity Audits?
A cybersecurity audit checks how well security controls are designed, implemented, and followed.
– Reviews policies, procedures, and responsibilities (governance)
– Verifies technical controls (authentication, encryption, segmentation, hardening)
– Tests evidence (logs, access records, patch history, vulnerability handling)
– Identifies gaps and assigns remediation actions and deadlines
Audits may be internal, customer-driven (tender requirements), or performed by third-party security firms.
Why Cybersecurity Audits Matter in EV Charging
EV chargers are connected infrastructure that can affect service availability, user data, and site operations.
– Reduces risk of charger downtime caused by cyber incidents
– Protects customer and driver data, credentials, and payment-related workflows
– Improves reliability of remote operations (monitoring, smart charging, ticketing)
– Supports compliance and tender requirements where cybersecurity is mandatory
– Builds trust with enterprise customers, municipalities, and fleet operators
As charging networks scale, an audited security posture becomes a commercial advantage.
What Cybersecurity Audits Typically Cover in EV Charging
A full audit usually includes multiple layers of the ecosystem.
– Charger device security: firmware integrity, secure boot (if supported), ports/services, hardening, physical access controls
– Communications security: encrypted channels to CPMS (often TLS), certificate management, key rotation
– OCPP security configuration: endpoint authentication, message integrity expectations, and configuration management
– CPMS and cloud: IAM, secrets management, logging, segmentation, vulnerability management, backups
– Operational security: role-based access, technician processes, vendor access, incident response readiness
– Software supply chain: CI/CD hardening, signing, SBOM practices, and secure release management
How Cybersecurity Audits Are Performed
Audits are typically a mix of documentation review and technical validation.
– Review architecture diagrams and data flows
– Examine identity and access management roles and privileges
– Check patching cadence and vulnerability handling process
– Validate secure configuration (TLS, certificates, firewall rules, endpoint protection)
– Sample device logs and CPMS logs for traceability and anomaly detection
– Assess update process controls (approval gates, signing, staged rollout, rollback)
Some engagements also include:
– Vulnerability scanning and penetration testing (with defined scope)
– Configuration baseline checks across a fleet of chargers
– Incident tabletop exercises to validate response processes
Evidence and Outputs Commonly Requested
– Security policy and responsibility matrix
– Asset inventory and software/firmware version control
– Access logs and admin activity reports
– Encryption and certificate management documentation
– Vulnerability management records and remediation timelines
– Secure update pipeline documentation and release audit trail
– Incident response plan and escalation contacts
Having these prepared reduces audit friction and speeds procurement approvals.
Key Benefits of Cybersecurity Audits
– Identifies weaknesses before incidents occur
– Improves uptime and operational resilience
– Strengthens tender responses and enterprise procurement trust
– Supports scalable governance as charger deployments grow
– Creates measurable remediation plans and security KPIs over time
Limitations to Consider
– Audit scope varies widely; a “pass” can still leave gaps if scope is narrow
– One-time audits age quickly without continuous vulnerability management
– Device fleet diversity can complicate standardization and enforcement
– Fixing findings may require firmware changes, backend re-architecture, or process changes
– Overly strict controls can slow operations unless workflows are designed well
Related Glossary Terms
Charger Cybersecurity
Secure Update Pipeline
Certificate Management
OCPP 1.6 / 2.0.1
Integrated Ticketing
Charger Diagnostics
Uptime
SBOM (Software Bill of Materials)