software security course

solve these questions:

1. "Designers and developers often consider an interface between two components to be trusted. Naturally, if this trust is misplaced, and an attacker can access or manipulate trusted entities, system security can fall like dominos." To which extent do you agree or disagree on this.

2.Some systems may rely on third-party components, can you elaborate on this point and, from your point of view, how can you minimize the risk and reduce security issues.