I am a bit lost here, and I am by no means an expert in US corporate law. Is there a law that company's CEO should always record all their conversations? What about phone calls? In-person meetings?
There is no general requirement. But, the article refers to a “litigation hold”.
That’s something that will arise out of a specific lawsuit, and will be an order from a judge that says the company is required to preserve documents and other evidence that pertain to the litigation.
So, not a general law that’s required all the time, but an order from a Judge in specific cases, that apply for the duration of the case.