Facebook threatens in the UK a class action lawsuit for $ 3.1 billionbecause it is said to have abused its market dominance for years. What is special regarding this case is that the lawsuit was filed on behalf of all UK residents who used Facebook between 2015 and 2019. In other words, those affected do not have to take an active part in the lawsuit in order to claim compensation. Instead, there is an “opt-out” option by means of which one can decide once morest participating.