Guangzhi Cao, a former engineer at Tesla, admitted in a court filing this week that he uploaded zip files containing Autopilot source code to his personal iCloud account in late 2018 while still working for the company. Tesla sued Cao earlier this year for allegedly stealing trade secrets related to Autopilot and bringing them to Chinese EV startup Xiaopeng Motors, also known as Xmotors or XPeng, which is backed by tech giant Alibaba.