Your question is C++ Embedded Security Mindset. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Describe a time you applied C++ best practices in an embedded context to improve reliability, safety, or security.
Explain the system context, the failure or threat you addressed, the C++ practices you selected, and how you verified that they worked. Be specific about trade-offs, testing evidence, and what you would improve in hindsight.