Apple and Facebook have been in a very public spat over the course of the last few months as Apple dials up its pro-privacy stance. The two companies have long had tension, more recently however Facebook is taking shots at an upcoming iOS and iPadOS feature that will require apps and data companies such as Facebook to ask for users’ permission before tracking them across other sites and websites.

While for the most part, the war of words between the tech titans has remained professional, Mark Zuckerberg and Tim Cook have also shared a barrage of attacks towards each other. During an interview in 2018 in the midst of Facebook’s notorious Cambridge Analytica scandal, Cook was asked how he would lead Apple if it were to face a similar crisis. Cook responded by ruling the hypothetical situation out of the question, saying Apple would not be in the situation Facebook was in, thanks to its differing stance on privacy and user data. Zuckerberg shot back, calling Cook’s comments on TV “extremely glib” and “not at all aligned with the truth.”