I know this is a certification forum but I figured this is important enough to merit a topic here. I also know there is a super thread of sorts going on at
http://www.techexams.net/forums/off-topic/126935-cyber-attack-nhs.html. However, I felt like a friendly reminder was in order.
Make sure you coordinate to patch your production systems and your lab (and home) systems with MS17-010. This is a nasty one. Just about every Windows system ever is affected so, please do your patching. You don't want to be another vicitim.
Link to the Security Bulltin
https://technet.microsoft.com/en-us/library/security/ms17-010.aspx
Furthermore, to any of you who have worked this thing this weekend, my hat's off to you.