Diagnostic report for Cubic card terminal exhibiting excessive network traffic. Assesses potential causes and recommends non-invasive solutions.
This information is crucial for identifying potential data exfiltration points or compromised servers.
Outdated firmware may contain known vulnerabilities that could be exploited.
Physical tampering could indicate a hardware-based attack or malware injection.
Card terminals communicate via Ethernet or cellular networks. Excessive traffic can be caused by various factors, including firmware bugs, malware infections, or misconfigured network settings. The device relies on secure communication protocols (e.g., TLS) to protect sensitive data. High traffic may indicate attempts to bypass these protocols, potentially linked to buffer overflows, denial-of-service attempts or faulty error handling.
Ensure the terminal is disconnected from power before performing any physical inspections or cable adjustments. Use appropriate electrostatic discharge (ESD) protection when handling the terminal to prevent damage to sensitive components. Avoid placing the terminal near sources of electromagnetic interference (EMI).
Many payment terminals have a 'diagnostic mode' accessible via a key combination during boot. Consult the Cubic documentation (if available) to determine if such a mode exists and if it provides network traffic monitoring tools.