Do not grant permissions to an app that it should not need: torches and star-gazing apps don’t need access to your contacts and phone. And never grant accessibility permissions that facilitate device control unless you have a need. Once a month, scan through your phone and delete a few of the apps you no longer need or haven’t used in a long time.

Epic Games Inc. expanded its antitrust legal fight with Alphabet Inc.’s Google by accusing the tech giant of conspiring with Samsung Electronics Co. to block rival app marketplaces through default settings on mobile devices sold all over the world.