While it’s turned on, it automatically keeps users from installing apps unless they come from “authorized sources” — namely, Google and Samsung’s app stores. Epic claims there’s no process for any rival store to become “authorized.

Just a month and a half after publisher Epic Games moved to make its games, including Fortnite, available on third-party app stores, it's now suing tech giants Samsung and Google over access to those storefronts.

Fortnite” video game maker Epic Games on Monday accused Alphabet’s Google and Samsung, the world’s largest Android phone manufacturer, of conspiring to protect Google’s Play store from competition. Epic said it would file a lawsuit in U.