Guide is too simple. Do you use public Wi-Fi (hotels, airports, coffee shops and restaurants...)? Then you should be using a VPN. https://www.wilderssecurity.com/thr...-like-airports-seriously.455101/#post-3210583 Not everyone needs to use a VPN, but many more than you would think should be using one, in my opinion.
I believe internet users should use whatever they want to use to feel comfortable while online The bigger problem in my opinion, is that so much of your personal information is stored on first, second, or third company sites after being farmed out by the original keepers of your information, and they cannot protect or do not protect their systems from intrusion for whatever reason. at&t is a good example of that behavior. Many others as well.