Indeed, it was a really clear case of election interference through the falsification of business records. It is a good result and now we just have to wait and see how people react. Will he beat Biden in the election? Will he be clearly rejected? I hope things end with him not being in office, but no matter what happens he cannot pardon himself for state crimes and if he wins the election and New York sentences him to prison time then there will be a novel set of issues to resolve from there. Ideally he loses, is sentenced to prison, and spends the remainder of his life offline.
I don’t know about videos but having a look at the OSI model is a good way to start. It covers the abstract framework for packetizing data including things like the distinction between hardware and software, envelope, encryption, application layer stuff, the whole shebang. The cool thing is by going hardware, network, application you can see where responsibility are and it helps you understand where things can go wrong.
If you are interested there are plenty of CCNA style courses available on the internet, licit and otherwise, and they go into more depth, and the same applies to RHCE/RHCSA material. The training for certifications like that covers what you want to know but also puts it in context, and again licit and otherwise sources are available.