Penetration testing (also called a pen test) is an authorized security assessment where skilled testers simulate real-world attacks to identify and validate vulnerabilities in systems, networks, and applications. The goal is to prove what could be exploited, measure impact, and provide actionable remediation steps.
In EV charging, penetration testing can cover charge points (EVSE), the charge point management system (CPMS), mobile apps, APIs, payment flows, and supporting infrastructure such as routers, VPNs, and cloud services.
Why Penetration Testing Matters in EV Charging
EV charging infrastructure is connected, distributed, and often publicly accessible, which increases exposure to cybersecurity threats. Penetration testing helps operators and OEMs:
– Validate the effectiveness of security controls beyond “paper compliance.”
– Reduce risk of unauthorized charger control, service disruption, or data breaches
– Protect customer data and business systems (users, payments, fleet accounts)
– Support compliance and procurement requirements (e.g., IEC 62443, ISO 27001)
– Identify misconfigurations, weak authentication, and insecure APIs before attackers do
What Penetration Testing Typically Covers
Pen tests are usually scoped to specific assets and attack surfaces, such as:
– CPMS web portals and operator dashboards
– Mobile apps (authentication, storage, API calls)
– Public and partner APIs (OCPP gateways, billing endpoints, roaming interfaces)
– Charger communications (e.g., OCPP transport security, certificate handling)
– Network segmentation, VPN access, firewall rules, and exposed services
– Payment paths (terminals, hosted payments, gateway integrations) with attention to PCI DSS boundaries
How Penetration Testing Works
A typical engagement follows a structured process:
– Define scope, rules of engagement, and authorization (what systems, what hours, what methods)
– Reconnaissance and mapping of exposed services and endpoints
– Vulnerability discovery (manual testing + tools)
– Exploitation attempts to validate impact (only within agreed rules)
– Privilege escalation and lateral movement testing (if in scope)
– Evidence collection and risk rating (likelihood + business impact)
– Reporting with remediation steps and retesting after fixes
Common Findings in Connected EV Systems
Pen tests often uncover issues such as:
– Weak authentication, missing MFA, or poor password policies
– Insecure API authorization (IDOR, token misuse, insufficient access control)
– Misconfigured cloud storage, admin panels, or exposed debug endpoints
– Outdated components and missing patch management
– TLS/certificate issues (expired certs, weak ciphers, improper validation)
– Inadequate network segmentation between chargers, CPMS, and corporate IT
Key Benefits
– Practical, exploit-validated view of real security risk
– Prioritized remediation guidance based on actual impact
– Improved resilience against downtime, fraud, and unauthorized control
– Stronger customer and tender confidence through documented testing
– Better incident readiness by understanding attack paths and weak points
Limitations and Practical Considerations
– Results depend heavily on scope; what is out of scope may remain untested
– Pen tests are point-in-time; continuous changes require recurring testing
– Production testing can cause disruption if not carefully controlled
– Must be coordinated with monitoring and incident response teams to avoid false alarms
– Findings need a remediation plan, ownership, and retest to deliver value
Related Glossary Terms
Cybersecurity Audits
IEC 62443
ISO 27001 Compliance
Secure Update Pipeline
Patch Management
Encrypted Communications
Incident Response
Intrusion Detection System (IDS)
Intrusion Prevention System (IPS)
OCPP
PCI DSS