Which practice is a key aspect of secure design in robotics safety?

• A. Implementing network segmentation
• B. Disabling authentication to speed up access
• C. Centralizing all control in one device with no redundancy
• D. Avoiding software updates

Answer: (A)

Network segmentation is a fundamental practice in secure robotics design because it creates explicit trust boundaries and limits the spread of a breach. In a robot system, different functions such as sensing, decision making, actuation, and operator interfaces often rely on separate networks. By dividing these into segments and enforcing strict access controls and gateways between them, a compromise in one area cannot automatically reach others. This containment supports safety by keeping dangerous or unsafe commands from propagating through the system, makes it easier to monitor and respond to incidents, and allows each segment to have security measures tailored to its specific risk profile.

Disabling authentication to speed up access removes a critical barrier to unauthorized control, which can lead to dangerous manipulation of the robot. Relying on a single device with no redundancy creates a single point of failure that can disable safety-critical functions. Avoiding software updates leaves known vulnerabilities unpatched, increasing the likelihood of exploits that could compromise safety.