Computer Security Fundamentals

Computer Security Fundamentals

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Welcome to today's most useful and practical one-volume introduction to computer security. Chuck Easttom brings together up-to-the-minute coverage of all basic concepts, terminology, and issues, along with all the skills you need to get started in the field. Drawing on his extensive experience as a security instructor and consultant, Easttom thoroughly covers core topics, such as vulnerability assessment, virus attacks, hacking, spyware, network defense, passwords, firewalls, VPNs, and intrusion detection. Writing clearly and simply, he fully addresses crucial issues that many introductory security books ignore, from industrial espionage to cyberbullying.

Computer Security Fundamentals, Second Edition is packed with tips and examples, all extensively updated for the state-of-the-art in both attacks and defense. Each chapter offers exercises, projects, and review questions designed to deepen your understanding and help you apply all you've learned. Whether you're a student, a system or network administrator, a manager, or a law enforcement professional, this book will help you protect your systems and data and expand your career options.

Learn how to

Identify the worst threats to your network and assess your risks
Get inside the minds of hackers, so you can prevent their attacks
Implement a proven layered approach to network security
Use basic networking knowledge to improve security
Resist the full spectrum of Internet-based scams and frauds
Defend against today's most common Denial of Service (DoS) attacks
Prevent attacks by viruses, spyware, and other malware
Protect against low-tech social engineering attacks
Choose the best encryption methods for your organization
Select firewalls and other security technologies
Implement security policies that will work in your environment
Scan your network for vulnerabilities
Evaluate potential security consultants
Understand cyberterrorism and information warfare
Master basic computer forensics and know what to do after you're attacked
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Product details

  • Paperback | 352 pages
  • 177.8 x 228.6 x 17.78mm | 566.99g
  • Pearson It Certification
  • Upper Saddle River, United States
  • English
  • 2nd edition
  • 0789748908
  • 9780789748904
  • 1,615,675

Table of contents

Introduction 1

Chapter 1: Introduction to Computer Security


How Seriously Should You Take Threats to Network Security?

Identifying Types of Threats


Compromising System Security

Denial of Service Attacks

Web Attacks

Session Hijacking

DNS Poisoning

Assessing the Likelihood of an Attack on Your Network

Basic Security Terminology

Hacker Slang

Professional Terms

Concepts and Approaches

How Do Legal Issues Impact Network Security?

Online Security Resources


Microsoft Security Advisor


SANS Institute


Test Your Skills

Chapter 2: Networks and the Internet


Network Basics

The Physical Connection: Local Networks

Faster Connection Speeds

Data Transmission

How the Internet Works

IP Addresses


Uniform Resource Locators

History of the Internet

Basic Network Utilities




Other Network Devices

Advanced Network Communications Topics

The OSI Model

Media Access Control (MAC) Addresses


Test Your Skills

Chapter 3: Cyber Stalking, Fraud, and Abuse


How Internet Fraud Works

Investment Offers

Auction Frauds

Identity Theft


Cyber Stalking

Laws about Internet Fraud

Protecting Yourself against Cyber Crime

Protecting against Investment Fraud

Protecting against Identity Theft

Secure Browser Settings


Test Your Skills

Chapter Footnotes

Chapter 4: Denial of Service Attacks


Denial of Service

Illustrating an Attack

Common Tools Used for DoS

DoS Weaknesses

Specific DoS Attacks

Land Attack

Distributed Denial of Service (DDoS)


Test Your Skills

Chapter 5: Malware



How a Virus Spreads

Recent Virus Examples




The Sobig Virus

The Mimail Virus

The Bagle Virus

A Nonvirus Virus

Rules for Avoiding Viruses

Trojan Horses .

The Buffer-Overflow Attack

The Sasser Virus/Buffer Overflow


Legal Uses of Spyware

How Is Spyware Delivered to a Target System?

Obtaining Spyware Software

Other Forms of Malware


Malicious Web-Based Code

Logic Bombs


Detecting and Eliminating Viruses and Spyware

Antivirus Software

Antispyware Software


Test Your Skills

Chapter 6: Techniques Used by Hackers


Basic Terminology

The Reconnaissance Phase

Passive Scanning Techniques

Active Scanning Techniques

Actual Attacks

SQL Script Injection

Cross-Site Scripting

Password Cracking


Test Your Skills

Chapter 7: Industrial Espionage in Cyberspace


What Is Industrial Espionage?

Information as an Asset

Real-World Examples of Industrial Espionage

Example 1: VIA Technology

Example 2: General Motors

Example 3: Interactive Television Technologies, Inc.

Example 4: Bloomberg, Inc

Example 5: Avant Software

Industrial Espionage and You

How Does Espionage Occur?

Low-Tech Industrial Espionage

Spyware Used in Industrial Espionage

Steganography Used in Industrial Espionage

Phone Taps and Bugs

Protecting against Industrial Espionage

Industrial Espionage Act

Spear Phishing


Test Your Skills

Chapter 8: Encryption


Cryptography Basics

History of Encryption

The Caesar Cipher

Multi-Alphabet Substitution

Binary Operations

Modern Methods

Single-Key (Symmetric) Encryption

Public Key (Asymmetric) Encryption

Legitimate Versus Fraudulent Encryption Methods

Digital Signatures



Encryptions Used in Internet

Virtual Private Networks





Test Your Skills

Chapter 9: Computer Security Software


Virus Scanners

How Does a Virus Scanner Work?

Virus-Scanning Techniques

Commercial Antivirus Software


Benefits and Limitation of Firewalls

Firewall Types and Components

How Firewalls Examine Packets

Firewall Configurations

Commercial and Free Firewall Products

Firewall Logs


Intrusion-Detection Software

IDS Categorization

IDS Approaches


Honey Pots

Other Preemptive Techniques


Test Your Skills

Chapter 10: Security Policies


What Is a Policy

Defining User Policies


Internet Use

Email Usage

Installing/Uninstalling Software

Instant Messaging

Desktop Configuration

Final Thoughts on User Policies

Defining System Administration Policies

New Employees

Departing Employees

Change Requests

Security Breaches

Virus Infection

Denial of Service Attacks

Intrusion by a Hacker

Defining Access Control

Developmental Policies

Standards, Guidelines, and Procedures


Test Your Skills

Chapter 11: Network Scanning and Vulnerability Scanning


Basics of Assessing a System







Securing Computer Systems

Securing an Individual Workstation

Securing a Server

Securing a Network

Scanning Your Network



Getting Professional Help


Test Your Skills

Chapter 12: Cyber Terrorism and Information Warfare


Actual Cases of Cyber Terrorism

China Eagle Union

Economic Attacks

Military Operations Attacks

General Attacks

Supervisory Control and Data Acquisitions

Information Warfare


Information Control


Actual Cases

Future Trends

Positive Trends

Negative Trends

Defense against Cyber Terrorism


Test Your Skills

Chapter 13: Cyber Detective


General Searches

Court Records and Criminal Checks

Sex Offender Registries

Civil Court Records

Other Resources



Test Your Skills

Chapter 14: Introduction to Forensics


General Guidelines

Don't Touch the Suspect Drive

Document Trail

Secure the Evidence

FBI Forensics Guidelines

Finding Evidence on the PC

Finding Evidence in the Browser

Finding Evidence in System Logs

Windows Logs

Linux Logs

Getting Back Deleted Files

Operating System Utilities

Net Sessions




The Windows Registry


Test Your Skills

Appendix A: Glossary

Appendix B: Resources

General Computer Crime and Cyber Terrorism

General Knowledge

Cyber Stalking

Identity Theft

Port Scanners and Sniffers

Password Crackers



Counter Spyware

Cyber Investigation Tools

General Tools

Virus Research

9780789748904 TOC 12/6/2011
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About William (Chuck) Easttom

Chuck Easttom has been in the IT industry for many years working in all aspects including network administration, software engineering, and IT managementFor the past 10 years he has been parttime teaching at colleges and doing corporate trainingFor the past 7 years, he has also been an independent consultant working with a variety of companies and serving as an expert consultant/witness in various computer casesChuck holds more than 28 different IT industry certifications, including the CISSP, ISSAP, Certified Ethical Hacker, Certified Hacking Forensics Investigator, EC Council Certified Security Administrator, and EC Council Certified InstructorHe has served as a subject matter expert for the Computer Technology Industry Association (CompTIA) in the development or revision of four of their certification tests, including the initial creation of their Security+ certification. Most recently he worked with the EC Council to develop their new advanced cryptography course, which he is teaching around the world.

In addition to this book, Chuck has authored 12 other titles on topics such as computer security, web development, programming, Linux, and computer crimeChuck also is a frequent guest speaker for computer groups, discussing computer securityYou can reach Chuck at his website or by email at
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3 60% (9)
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