The FIA has dropped the investigation into the conduct of Mercedes team principal Toto Wolff and his wife Susie, the head of F1 Academy, after finding Formula 1’s compliance rules to be sufficiently robust to prevent any breaches of confidentiality.
I've heard of some opinions saying that all this fuss is to try to set the teams against each other, and after such cheap accusations (while not actually accusing) and this quick withdrawal from the FIA I'm inclined to believe that.