CISA’s June 23, 2026 Siemens advisory batch included SIPROTEC 5 using the DIGSI 5 protocol and WinCC Certificate Manager. Those topics sound technical, but the buyer’s problem is very practical: when an engineer asks for Siemens support hardware or replacement parts after an advisory, the RFQ must contain enough evidence to avoid a wrong quote. […]
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PLC, DCS, HMI and drive spare parts RFQ support