What does cybersecurity entail for space ground segments?

What does cybersecurity entail for space ground segments?

• A. Protecting ground systems, networks, and command links from cyber threats; implementing access control and anomaly detection
• B. Designing radiation-hardened hardware
• C. Protecting spacecraft propulsion and power systems from cyber threats
• D. Encrypting only telemetry data during transmission

Answer: (A)

Cybersecurity for space ground segments focuses on guarding the ground infrastructure that talks to spacecraft—the ground systems, networks, and the command links—from cyber threats. It includes implementing strong access control so only authorized operators can interact with control systems, and anomaly detection to spot unusual or unauthorized activity that could indicate a breach or manipulation of commands or data. These measures help ensure the reliability, integrity, and availability of the ground segment, which is essential for safe and successful mission operations.

Why the other options don’t fit: designing radiation-hardened hardware tackles physical resilience to space radiation rather than cyber threats; protecting propulsion and power systems is a spacecraft-side concern, not the ground segment; encrypting only telemetry data during transmission is too narrow—cybersecurity covers authentication, integrity, access control, and monitoring across the whole ground communication ecosystem, not just one type of data.