Taiwan chipmaker says WannaCry infection hit unpatched Windows 7 systems in its factories. Chipmaker traced infection to a new software tool that it failed to scan for malware before installation. TSMC says the outbreak could cost it $170 million. The company supplies chips to Apple, Qualcomm, Nvidia, AMD and more; it’s the sole supplier of Apple’s main iPhone processor. The outbreak at TSMC is a reminder that patching is not always an easy endeavor in manufacturing environments because code changes must be rigorously tested.”]
Source: https://www.govinfosecurity.com/wannacry-outbreak-hits-chipmaker-could-cost-170-million-a-11285