I work in the NHS, in development actually. From our point of view, in our region, some of the biggest effect has been self inflicted really, but out of self defence. We have a geographically localised network covering various trusts, drop in centres, GPs, business partners etc. Some VMs are located with cloud service providers, and there's also a national backbone that I believe much of NHS England is connected to. So we heard first that Blackpool NHS Trust was affected, we also heard St Barts in London had been affected, and then we also found a couple of infected machines within our own Trust. The whole network was taken down as a precaution and to contain it. I wouldn't want to be on any of the network or desktop support teams this weekend. Of course, there are consequences for electronic patient record and electronic pharmacy which is why we had doctors and nurses going back to pen and paper today.
Not being able to do any work and seeing the news break on BBC News, seeing them read the tweet the comms officer I work nearby to had penned only minutes earlier, was just surreal. It completely knocked Jeremy Corbyn and Theresa May off the news for a while.
I hope this firmly puts a firm foot down on the talk of ISPs and chat providers giving government back doors to encryption, this just shows the kind of awful power exploits have in the wrong hands.