For me, it was that the Internet never forgets and that you should never enter your real name. In my opinion, both of these rules are now completely ignored.
2 points
Only time I’ve had fraudulent charges was when I was 18 or so and hadn’t yet got my first line of credit. They disputed the charges normally and froze the account. It did suck not having much money but I also was living at home still so I just avoided spending money for a few days until it all finished processing