https://www.cnet.com/news/amazon-ceo-jeff-bezos-phone-hacked-by-saudis-investigator-says/

"Our investigators and several experts concluded with high confidence that the Saudis had access to Bezos' phone, and gained private information," de Becker wrote. He said he had provided US authorities with his findings. 

The Saudi embassy in Washington didn't immediately respond to a request for comment.