WinCC V7.0 SP3 is a legacy product. Because Microsoft has discontinued support for Windows XP, Windows 7, and Windows Server 2008 R2, the underlying operating systems no longer receive critical security updates. This leaves the SCADA host machine vulnerable to modern malware, ransomware, and network exploits. Mitigation and Defense-in-Depth
Fixes synchronization failures in redundant server configurations. wincc 7.0 sp3 update 1