Hypothetically, if someone had illegal access to your network, wireless, or the like, and if you set up a VPN, would that stop the hacker from being able to see everything that you do or would him having prior access to the network trump the VPN setup?
Also, if I do setup a VPN, what protections does it give me as far as keeping people from accessing my email, what I do online, being able to convos through our phones, etc?
As an added security, is the general consensus to use something like a Tor browser or setup (not sure what the technical terms are) along with using a VPN?
Basically, I just want to take steps to the point of overkill to protect my network and any device that is using it as well.
Thank you to whomever provided that information about the duplicate question, I looked at it and it was pretty much what I needed, but I think I needed a simpler answer to my question, as I don't know a lot of technical jargon. I did also want to know how Tor and VPN works in as close to layman's terms as possible and the commenters did a great job of helping explain that.