Epic v Apple: Tim Cook testifies as star witness in high-stakes trial

The Fortnite maker, the most popular game in the world, claims the way Apple runs its App Store amounts to a monopolyTim Cook, the chief executive of Apple, took the stand on Friday as the star witness in a high-stakes case brought by Epic Games that could upend the company’s business model.The trial stems from an antitrust lawsuit filed last year by Epic Games, the maker of the wildly popular video game Fortnite. The game became the most popular in the world in recent years, generating mo