No connection to A Good Girl's Guide to Murder haha, although I read them at similar times. I heard about this book from somewhere (forgot where exactly). It's a good guide, although a bit dated; it was set in more innocent times when people still used Facebook and the browser monopoly of Chrome was yet to get into full swing. I hope someone comes up (or has already come up) with a modern-day version of this guide, since it's more necessary than ever now—especially since we have a lot of people online these days who have no clue about how to protect themselves, or why they should, and only half a clue about how their devices even work...