Super Micro Computer's stock plummeted 25% after the US arrested co-founder Yih-Shyan Liaw, alleging he and two others conspired to smuggle AI chips worth $2.5 billion into China. The alleged smuggling efforts generated significant sales for Super Micro since 2024, violating US export controls. Liaw and another employee were placed on administrative leave, and the company terminated its relationship with the outside contractor. The incident has raised concerns about hardware supply chain security.