3 Guideline: Never hack someone’s system without their permission Ethical HackingBe responsibleDon’t use hacking for evilIt’s easy to be caught, and the penalties are very steepGuideline: Never hack someone’s system without their permission
4 Why do ethical hackers hack? It’s fun“War games.” Companies hire ethical hackers to hack into their systems so that the companies can learn how to improve their defensesEthical hackers develop defensive technologyEvery coder should know how to hack, so that they know how to write “secure code” (which is code that can defend itself from hackers)
5 How to hack?Hacking = manipulating a system to do something it wasn’t designed to doLike hot wiring a carHacking computers is often simple (once you know how computers work)
6 Just like requesting a person to compute something for you How do computers work? For example: What happens when you type google.com in your browser?There is a computer on the Internet whose address is google.comYour computer sends a “request” to that computerThe google.com computer computes a “response” and sends it back to your computerYour computer shows the response on your screengoogle.com computes the responsethis responseis a web page:requestJust like requesting a person to compute something for you
7 Example DoS attack DoS = denial of service Send a request for a very difficult computationIt might crash the computerThe Air Force once challenged me to hack their radar. That’s how I did it.
8 Hack my server!You have my permission to try to crash:But I won’t tell you howIt’s a puzzle
9 Guideline: Never hack someone’s system without their permission I repeat:Be responsibleDon’t use hacking for evilIt’s easy to be caught, and the penalties are very steepGuideline: Never hack someone’s system without their permission
10 Teach yourself to hack It can be a career Learn everything you can about how computers workLearn to codeLearn math (algebra, calculus, statistics, and beyond)Experiment a lotFind hacking challenges on the WebBe tenaciousBe patientBe ethical
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