As a result, Apple did not shut off his access to accounts and allowed him a customary two-week transition period, which he used to download company files, according to the lawsuit. "Worse still, the review of Mr. Liu's Apple-issued work laptop also shows that while maintaining access to Apple's Proprietary Information under false pretenses, he used his Apple credentials to exfiltrate thousands of documents containing Proprietary Information from Apple's secure file storage systems," the iPhone maker's lawyers said in the filing. Many of the files downloaded by Liu had codenames for Apple projects and described the company's technology, product design and supply chain, according to the lawsuit. Apple says that all employees agree to keep Apple files confidential and that Liu broke confidentiality agreements he made when he joined. Liu worked for Apple between 2017 and 2024, according to the lawsuit.