I read through this book anticipating I would find information that would help me understand the darker side of the internet and protect myself from it. In the end though, the bottom line of the book is that you need: 1) anti-virus software, 2) a good firewall like Zone Alarm, and 3) a good spy blocking program like Spycop. I knew that already and I have all that installed on my PC. The rest of the book is fluf. I found the reading extremely tedious and painful because there is so little new here. Don't waste your money. If you do the three things I mentioned above, you can bypass this book alltogether.