Definition & Meaning of "[swim] with sharks"

What is the origin of the idiom "swim with sharks" and when to use it?

The idiom "swim with sharks" draws upon the imagery of entering the same territory as sharks, known for their predatory nature and potential danger. It is used figuratively to describe a situation where someone is engaging in an activity or taking on a role that involves risks, challenges, or dealing with powerful and potentially hostile individuals or entities.