In my recent Solidity developer interview, I was asked about the risks of using external calls in smart contracts and how to mitigate them.

To answer confidently, what key aspects should I focus on? Should I emphasize security risks like reentrancy and gas efficiency, or are there other important points to mention?

How can I structure my response to make it clear, concise, and technically solid? If you’ve faced this question, how did you approach it? Looking for insights to improve my answer!