Apple CEO faces tough questions about app store competition

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 Friday 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.