Most black hackers (crackers) hack with already-made tools. I hope this lecture will help you get out of the well a little. I hate to admit it, but.. I learned that the commonality between general developers, white hackers, and ordinary people is that they use software that already exists on the Internet to do something. I was originally a C# (WPF, WINFORM) developer, but I thought black hackers made their own hacking tools in their own programming language. Of course, there are people who make them themselves..? Instructor, Thank you for the great lecture.