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Published:
September 29, 2025

Hacking For Dummies

Overview

Are you worried about external hackers and rogue insiders breaking into your systems? Whether it’s social engineering, network infrastructure attacks, or application hacking, security breaches in your systems can devastate your business or personal life. In order to counter these cyber bad guys, you must become a hacker yourself—an ethical hacker.

Hacking for Dummies shows you just how vulnerable your systems are to attackers. It shows you how to find your weak spots and perform penetration and other security tests. With the information found in this handy, straightforward book, you will be able to develop a plan to keep your information safe and sound. You’ll discover how to:

  • Work ethically, respect privacy, and save your system from crashing
  • Develop a hacking plan
  • Treat social engineers and preserve their honesty
  • Counter war dialing and scan infrastructures
  • Understand the vulnerabilities of Windows, Linux, and Novell NetWare
  • Prevent breaches in messaging systems, web applications, and databases
  • Report your results and managing security changes
  • Avoid deadly mistakes
  • Get management involved with defending your systems

As we enter into the digital era, protecting your systems and your company has never been more important. Don’t let skepticism delay your decisions and put your security at risk. With Hacking For Dummies, you can strengthen your defenses and prevent attacks from every angle!

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About The Author

Kevin Beaver is an independent information security consultant, speaker, and expert witness with two decades of experience in the IT industry. He specializes in performing information security assessments revolving around compliance and IT governance.

Sample Chapters

hacking for dummies

CHEAT SHEET

Not all hacking is bad. It reveals security weaknesses or flaws in your computing setups. This Cheat Sheet provides you with quick references to tools and tips and alerts you to commonly hacked targets — information you need to make your security testing efforts easier.Hacking tools you can’t live withoutAs an IT information security professional, your toolkit is the most critical item you can possess against hacking — other than hands-on experience and common sense.

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Articles from
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Hackers use a variety of means to gain passwords. One of the most common ways for hackers to get access to your passwords is through social engineering, but they don’t stop there. Check out the following tools and vulnerabilities hackers exploit to grab your password. Keystroke logging One of the best techniques for capturing passwords is remote keystroke logging — the use of software or hardware to record keystrokes as they’re typed.
Although it’s not usually top of mind, people send a ton of good info via email that a hacker can use. Knowing this, you will want to ensure that your email systems are probably warded against hackers. The following countermeasures help keep messages as secure as possible to avoid an email hack. Software solutions that combat email hacking The right software can neutralize many threats against your email system: Use antimalware software on the email server — better, the email gateway — to prevent malware from reaching email clients.
Database systems — such as Microsoft SQL Server, MySQL, and Oracle — have lurked behind the scenes, but their value, security vulnerabilities and ability to be hacked have finally come to the forefront. Yes, even the mighty Oracle, which was once claimed to be unhackable, is as susceptible to exploits and hacks as its competition.
Not all hacking is bad. It reveals security weaknesses or flaws in your computing setups. This Cheat Sheet provides you with quick references to tools and tips and alerts you to commonly hacked targets — information you need to make your security testing efforts easier.Hacking tools you can’t live withoutAs an IT information security professional, your toolkit is the most critical item you can possess against hacking — other than hands-on experience and common sense.
As part of mapping out your network before performing security testing or an ethical hack, you can search public databases and resources to see what other people know about your systems. WHOIS lookups The best starting point is to perform a WHOIS lookup by using any one of the tools available on the internet. In case you're not familiar, WHOIS is a protocol you can use to query online databases such as DNS registries to learn more about domain names and IP address blocks.
Hackers often use information that is public to target organizations. The amount of public information you can gather about an organization’s business and information systems from the internet is staggering. To see for yourself how hackers utilize public information to launch an attack, use the techniques outlined below to gather information about your own organization.
One way to begin planning an ethical hack on your business is through a process often called footprinting. Through footprinting, you see what others can see about your organization and systems. Here is the process for footprinting: Gather public information The amount of information you can gather about an organization’s business and information systems is staggering and widely available on the internet.
As with practically any IT or security project, you need to plan security testing. And, since it's been said that action without planning is the root of every failure, strategic and tactical issues in vulnerability and penetration testing need to be determined and agreed on in advance.To ensure the success of your ethical hacking efforts, spend time planning for any amount of testing, from a simple OS password-cracking test against a few servers to a penetration test of a complex web environment.
Many organizations have enemies who want to cause trouble through social engineering. These people may be current or former employees seeking revenge, competitors wanting a leg up, or hackers trying to prove their worth. In any event, the information gained from social engineering can be useful to someone hoping to launch a hacker attack against your organization.
Websites and applications are notorious for taking practically any type of input, mistakenly assuming that it’s valid, and processing it further. Not validating input is one of the greatest mistakes that web developers can make and one of the finest tools in a hackers toolkit.Several attacks that insert malformed data — often, too much at one time — can be run against a website or application, which can confuse the system and make it divulge too much information to the hacker.
Every system you have in place can be subject to hacking. This includes email hacking, such as email bombs. Email bombs attack by creating denial of service (DoS) conditions against your email software and even your network and Internet connections by taking up a large amount of bandwidth and sometimes requiring large amounts of storage space.
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