Microsoft ended support for Windows 7 on January 14, 2020. This means that there will be no more routine security updates for Windows 7 anymore and software developers will eventually stop supporting it with recent versions of their software.
What dangers does this pose to my organization?
Is continuing to use Windows 7 dangerous? Well, that depends. While it likely didn't become inherently dangerous the moment support ended on January 14,2020 it does continue to get more dangerous as time goes by.
Windows 7 will continue to have more and more unpatched security holes that attackers know about. As Windows finds security holes in their newer versions, there will be no fix for Windows 7. This allows hackers to become aware of these holes and specifically target machines using Windows 7 to exploit those holes. Eventually browsers and other applications you use will drop support for your operating system and you'll be stuck using out-of-date browsers, which is especially dangerous.
We're still using Windows 7, What Should We Do?
We recommend that you upgrade and get off Windows 7 as soon as possible. That may mean installing a new operating system on your current hardware – or you may have to buy new PCs.
If you have critical software or hardware to run that doesn't support modern versions of Windows there may be workarounds needed to help you decrease your risk.