Government computer systems are a good twenty years behind the times and their security is worse.
In many places the “Next” computers manufactured and sold by a company owned by Ross Perot, they were shitty computers when they were new.
In movies the FBI has sci-fi level computers but a couple of years ago I had a friend in the FBI and his crappy laptop provided by the bureau was still running Windows Millennium.
This is decadence and part of our crumbling infrastructure.

Calling these primitive attacks "hacking" is basically a way to misdirect away from the abysmally bad security of the targets