https://www.cnbc.com/2018/04/11/facebook-ceo-mark-zuckerberg-was-ready-to-slam-apple-in-his-testimony-over-privacy.html

Facebook CEO Mark Zuckerberg and Apple CEO Tim Cook have exchanged words over privacy during the last few weeks — in a battle that could be set to continue.

It started when Cook was asked what he would do if he were faced with the problems facing Facebook after the Cambridge Analytica scandal.