This summary is not the rule. The rule text controls.
Here's a plain English summary:
If someone owns a trade secret, like a special formula, process, or business method, they have the right to keep it private during a court case. This means they can refuse to share the secret, and they can also stop other people from revealing it. This right can be claimed by the owner directly, or by someone who works for the owner, like an employee or agent.
However, this protection isn't automatic. A judge has to review the situation first. The judge will only allow the trade secret to stay private if doing so won't help hide fraud or create an unfair result for the other side in the case. So if keeping the secret private would let someone get away with cheating or would seriously harm the other party's ability to get a fair outcome, the judge can decide the secret must be disclosed anyway.
In short, trade secrets get real protection in court, but that protection has limits. It exists to protect legitimate business interests, not to help someone hide wrongdoing or gain an unfair advantage in a lawsuit.