Apple faces a lawsuit from neuroscientists Susana Martinez-Conde and Stephen Macknik, who allege the company used thousands of copyrighted books, including their own works, to train its AI system, Apple Intelligence. Filed in California, the suit claims Apple accessed "shadow libraries" to illegally obtain these texts. Following the AI's launch, Apple's market value surged by over $200 billion. The neuroscientists seek damages and an injunction against further copyright infringements.