Let's say Caesars states, "we just got hacked and, as has been reported in every major newspaper, paid $10 million as ransom. We have reason to believe one or more attendees of DEF CON were part of that group."

How does making this statement this benefit Caesars in any way? Now DEF CON can demand some proof of this claim, or sue for defamation, or state that without proof, Caesars isn't acting in good faith, whatever.