If you had any version of Windows since Vista running the default Windows Update, you would have had the critical Microsoft Security Bulletin known as “MS17-010” pushed down to your PC and automatically installed. Without doing a thing, when WannaCry came along almost 2 months later, the machine was protected because the exploit it targeted had already been patched. It’s because of this essential protection provided by automatic updates that those advocating for disabling the process are being labelled the IT equivalents of anti-vaxxers and whilst I don’t fully agree with real world analogies like this, you can certainly see where they’re coming from. As with vaccinations, patches protect the host from nasty things that the vast majority of people simply don’t understand.
Great article, which also goes into Windows Update itself for a bit.