Shein's global ambitions leaves some cybersecurity experts fearful of Chinese spy threats

The rise of Asian fast fashion retailer Shein already has Amazon on alert, but its plans of selling proprietary supply-chain technology and services to companies around the world has attracted attention from another corner: U.S. cybersecurity firms and national security experts who warn of the potential for a company with close ties to China spying on the supply chain as it seeks to grow its global logistics footprint.