Apple expert witnesses testify on App Store security, Apple R&D spending

Several expert witnesses testified on behalf of Apple in its trial with Epic Games Thursday, covering topics such as intellectual property law and the availability of alternative devices among "Fortnite" players. Credit: Apple The first Apple expert witness on the stand, for example, was marketing professor Dominique Hanssens, who has conducted studies about whether iPhone and iPad users regularly used other devices that could access "Fortnite."