Hacking and Pen Testing

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Hacking and Pen Testing: Become an Expert in Computer Hacking and Security (Penetration Testing, Cyber Security, Hacking)


Need to Learn More About Hacking? Keep Reading to Find Out How You Can…

Hacking is a skill that can be useful in many different ways. Knowledge of hacking can be used as the backbone to securing your own computers and systems. A favorite quote of mine sums it up very well.

“The first step to making yourself secure, is knowing how vulnerable you are.”

There are many benefits to learning how to hack. The only problem is that it can be a difficult process. Becoming an effective hacker is about learning the right things at the right time. There is so much information on the internet related to the topic that it can be tough to decide what is important to learn about. This book will teach you today’s most relevant information in the hacking world. 

A Preview of What You Will Learn

✔ Exactly What Hacking Is

✔ Unseen but Obvious Vulnerabilities

✔ The Best Tools to Use

✔ Examples of Real Hacks Done in the Past

✔ Countermeasures and Good Practice Tips

✔ Much, much more!



This book is about hacking and other forms of computer crime. I make no apologies for my choice of subject matter. The plain fact is; any computer security expert is also a hacker. You have to understand the nature of the threats facing you, your company, and your clients before you can hope to defend against it. Likewise, it’s not only a matter of knowledge and experience; the mindset of a hacker must also be embraced. In today’s world, it is no longer sufficient to install an antivirus program and update it whenever you remember.
So, some of the information in this book will enable you to do bad things. I can’t help that any more than I could write a book about DIY and later prevent you from hitting someone with a hammer. I can only ask you to remember this: stealing a credit card number online is absolutely no different from stealing somebody’s wallet. If you deliberately harm another person using information from this book, the consequences are your responsibility, and I will have exactly no sympathy for you.
Part One: What is Hacking?
So what is this thing, hacking? A cop, a computer science professor, a SysAdmin, and a hacker will each have divergent definitions. So, for this book, let’s just say that hacking is the battle between information “wanting to be free” and information wanting to stay private. This battle goes back to long before computers had even been thought of.
Historically, hacking and counter-hacking started with codes or cyphers. The first system for coding messages I know of started in ancient Rome, where it was used for sensitive communications between the political leadership and generals in the field. It worked as follows: the sender had a carved stick, around which he wrapped a strip of paper before writing his letter. If the message was stolen along the way, the proto-hacker would only see a long ribbon with some scratches on it. The recipient, however, had an identically shaped stick. All he needed to do was wrap the letter around this, and he could easily read the message in clear text (well, in Latin). The same considerations led to more and more sophisticated cyphers. A merchant in Venice might have wanted his agent in Milan to buy olive oil in bulk. A spy might have needed to send a report on which road an enemy army was following. A king might have wanted to send instructions to his ambassador about what treaty terms he was willing to accept for his country; in all these cases, it is not only important to convey the information, but also that hostile parties do not know what it is you know, and cannot, in fact, send their own messages pretending to be you. This was the birth of cryptography, the study of codes and code-breaking, which any aspiring hacker will need to become very familiar with. Cryptography, in fact, led directly to the development of modern computers.
All of us are familiar with digital computers; some would even say that a calculating machine without a mouse and screen can’t be a “real computer.” However, a mechanical device with gears and levers can perform calculations, and
analog computers are in use even today (such as in aircraft avionics). The former, mechanical kind of computer was used by the Nazis in the Second World War to encipher military message traffic – a machine known as Enigma. A team of British engineers and mathematicians, a man named Alan Turing prominent among them, set themselves the task of hacking Enigma. They designed their own mechanical computer to help them, which was the direct ancestor of the first general-purpose, programmable digital computer.
Some historians state that the work done by this group of government-sponsored hackers shortened the war by two to four years, while Winston Churchill claimed that Allan Turing had made the single biggest contribution to the war effort of anyone. After the war, though, and with the information age already established partly on his work, Turing committed suicide by eating a poisoned apple. When Steve Jobs (founder of Apple Computers) was asked if Turing’s death had been the inspiration for the famous Apple logo, he replied, “No, but God, we wish it were.”
The World War had ended, the Cold War was on, there were secrets to be kept, secrets to share, and secrets to steal. Cryptography and other forms of hacking had already been shown to be crucial to national interests; in the decades to come there would be a hacker arms race nearly as important as the one involving tanks and thermonuclear bombs. Still, the advent of the computer had changed the world, and not only for politicians and generals. Computers shrank from the size of a building to that of a room, to that of a car and so on. Their price decreased from where only government budgets could support them, to where large corporations could operate one or two, to where they started appearing in universities and eventually in homes.
This was still not the beginning of what we think of as hacking today. Of course, programmers were busy exploring the limits of what their equipment was capable of and doing things that had never been done before, sometimes on a weekly basis. But, they were generally still working in teams in university or government labs, with no real reason to probe for exploits in the same systems they were responsible for. However, there was one group of individualistic misfits who liked to take things apart to see how they worked… and how they could be made to work differently. Typically, they also liked to chat, and the telephone system was their playground……
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James Smith