Apple's lawsuit against YouTuber Jon Prosser: Cooperation instead of resistance

Following Apple's lawsuit against YouTuber Jon Prosser and Michael R., both are showing cooperation. It's about stolen trade secrets.

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Jon Prosser in the video in question, in which he leaked the Liquid Glass design in advance

Jon Prosser in the video in question (screenshot), in which he leaked the Liquid Glass design in advance.

(Image: YouTube/fpt/heise medien)

3 min. read

Following Apple's lawsuit against well-known YouTuber Jon Prosser, both defendants are now showing cooperation. Apple's lawyers announced this to the responsible court in San Francisco, along with the lawyer for co-defendant Michael R. Prosser and R. are accused by Apple of illegally accessing an iPhone belonging to a former Apple employee and stealing trade secrets. The current focus is on determining the extent of the breach (Case: 3:25-cv-06043).

In early 2025, Prosser boasted in a video that he had gained knowledge of the design changes in iOS 26, which was then expected as iOS 19. In renderings, Prosser provided insights into the Liquid Glass design, which came remarkably close to what Apple presented at its WWDC developer conference in June.

According to the lawsuit, this was made possible because co-defendant R. gained access to an Apple company device. Through his friendship with former Apple developer Ethan L., R. had the opportunity to access the device in his absence. He is said to have previously obtained knowledge of the necessary passcode. In a FaceTime call, R. then showed Prosser the then-current test version of iOS. Prosser later recreated the findings in renderings to show them in his videos.

Videos by heise

While R. immediately showed cooperation, Prosser initially did not respond to the lawsuit. Although he denies it, the court issued a default judgment against him on October 17, 2025. However, this has now changed, as Apple's lawyers have informed the court. They are in the process of scheduling appointments with Prosser. This includes, among other things, an interrogation of the defendant. In R.'s case, Apple also had devices handed over for forensic examination. Apple wants to gain knowledge through the interrogations about how far confidential information has been disseminated.

A further notification on the progress of the case was promised to the court for April 13, 2026. In the meantime, Prosser has not been deterred by the ongoing proceedings against him and continues to publish videos in which he claims to show future devices and features. He has since stated that the events did not unfold as presented by Apple in the lawsuit.

For the affected Apple employee, the matter already ended with his dismissal. Apple accuses him of not adequately protecting his device from unauthorized access. Furthermore, he allegedly identified himself too late as the owner of the apartment when a recording of Prosser's FaceTime call became public. Apple is said to have learned of the incident through an anonymous email.

(mki)

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This article was originally published in German. It was translated with technical assistance and editorially reviewed before publication.