By which I mean, if someone is telling you someone did x, y, or z to someone else, but the person who was supposedly the victim denies the allegation.
Believe the victim, don’t turn shit into a shitstorm against the victim’s will. Check with survivors and people said to be survivors before spreading shit around.
I’ve seen abusers start witch hunts against other people to conceal their own behavior, do not let them do it.