While we're used to feuds between same-sector competitors such as Apple and Samsung as mobile phone creators, the tech market has been witnessing a long and deep feud between Apple and Facebook due to the war between their CEOs, Tim Cook and Mark Zuckerberg.
The latest move Apple took against Facebook's policies is to warn iPhone users that Facebook is tracking their every move across different apps on their iPhones. This anti-tracking warning is coming in the form of a notification that asks the user whether they would like to stop apps from tracking their phone activity with a button to deny Facebook access to these activities.
Since tracking users and collecting data about them is Facebook's main move to gain money, it is expected that most of Apple iPhone users are going to deny the app this permission which will result in Facebook, as a company, losing up to 7% of its revenue for the second quarter this year.
Such a blow to a giant like Facebook is not expected to go without retaliation, of course. However, until now, we have not seen any actual response from the Facebook side thus far.