Urgent update for Windows
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Microsoft yesterday released an extremely urgent update for Windows.
Normally the most reliable way to get updates from Microsoft is to use the Automatic Updates feature in Windows which will install updates for you. On this occasion however we strongly encourage everyone on ResNet to go to the Microsoft Update website or open Control Panel, Security Centre and check for updates. Install all critical or important updates. Do this now, rather than waiting for automatic updates.
This particular update is unusual: it is for a particularly nasty security problem. Any Windows system with File & Printer sharing switched on is vulnerable, and criminals are already using this problem to attack computers.