Apple's Cook grilled in court

Apple CEO Tim Cook testifies on the stand during a weeks-long antitrust trial at federal court in Oakland, California, U.S. May 21, 2021. Cook on Friday told a court that threats to iPhone security and privacy required tight control of the App Store, which "Fortnite" game maker Epic Games says is a monopoly that Apple illegally abuses. REUTERS/Vicki Behringer

SAN RAMON, CALIFORNIA (AP): Apple CEO Tim Cook described the company's ironclad control over its mobile app store as the best way to serve and protect iPhone users, but he faced tough questions about competition issues from a judge on Friday (May 21) about allegations he oversees an illegal monopoly.

The rare courtroom appearance by one of the world’s best-known executives came during the closing phase of a three-week trial revolving around an antitrust case brought by Epic Games, maker of the popular video game Fortnite.