Apple filed an appeal over the European Union’s $587 million fine on Monday – escalating a showdown over enforcement of a sweeping antitrust law targeting Big Tech firms. EU antitrust regulators slapped Apple with the first-of-its-kind fine in April after finding CEO Tim Cook’s firm prevented rival app developers from quickly steering customers to services outside its App Store.

Apple is appealing the 500 million euro ($570 million) fine that it is facing in the European Union for allegedly violating the Digital

Apple Inc. appealed a €500 million ($580 million) fine from the European Union, calling the penalty “unprecedented” and the regulator’s required changes to its App Store as “unlawful.”