

Just have a look at what’s going on in ukraine. Once they started using drones, the drone were attacked through their wireless connections. Now they trail fiber optic cables for control. What does that say about the relative reliability and security?
For me, obsolete often means that I can no longer repair an important tool if it breaks. If I can’t get a replacement hard drive or video card or power supply for my ancient Windows computer, I need to think about getting a new computer, just to minimize risk.