SØG - mellem flere end 8 millioner bøger:
Viser: Computer Security Fundamentals
Computer Security Fundamentals
William Easttom
(2023)
Sprog: Engelsk
Cisco Press
616,00 kr.
ikke på lager, Bestil nu og få den leveret
om ca. 15 hverdage
om ca. 15 hverdage
Detaljer om varen
- 5. Udgave
- Paperback: 576 sider
- Udgiver: Cisco Press (Januar 2023)
- ISBN: 9780137984787
ONE-VOLUME INTRODUCTION TO COMPUTER SECURITY
Clearly explains core concepts, terminology, challenges, technologies, and skills
Covers today's latest attacks and countermeasures
The perfect beginner's guide for anyone interested in a computer security career
Dr. Chuck Easttom brings together complete coverage of all basic concepts, terminology, and issues, along with all the skills you need to get started. Drawing on 30 years of experience as a security instructor, consultant, and researcher, Easttom helps you take a proactive, realistic approach to assessing threats and implementing countermeasures. Writing clearly and simply, he addresses crucial issues that many introductory security books ignore, while addressing the realities of a world where billions of new devices are Internet-connected.
This guide covers web attacks, hacking, spyware, network defense, security appliances, VPNs, password use, and much more. Its many tips and examples refl ect new industry trends and the state-of-the-art in both attacks and defense. Exercises, projects, and review questions in every chapter help you deepen your understanding and apply all you've learned.
LEARN HOW TO
- Identify and prioritize potential threats to your network
- Use basic networking knowledge to improve security
- Get inside the minds of hackers, so you can deter their attacks
- Implement a proven layered approach to network security
- Resist modern social engineering attacks
- Defend against today's most common Denial of Service (DoS) attacks
- Halt viruses, spyware, worms, Trojans, and other malware
- Prevent problems arising from malfeasance or ignorance
- Choose the best encryption methods for your organization
- Compare security technologies, including the latest security appliances
- Implement security policies that will work in your environment
- Scan your network for vulnerabilities
- Evaluate potential security consultants
- Master basic computer forensics and know what to do if you're attacked
- Learn how cyberterrorism and information warfare are evolving
Introduction xxix
Chapter 1: Introduction to Computer Security 2 Introduction..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 2 How Seriously Should You Take Threats to Network Security?.
.
.
.
.
.
.
.
.
. 4 Identifying Types of Threats..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 7 Assessing the Likelihood of an Attack on Your Network..
.
.
.
.
.
.
.
.
.
.
. 17 Basic Security Terminology.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 18 Concepts and Approaches..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 21 How Do Legal Issues Impact Network Security?..
.
.
.
.
.
.
.
.
.
.
.
.
.
. 24 Online Security Resources..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 25 Summary..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 27
Chapter 2: Networks and the Internet 34 Introduction..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 34 Network Basics..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 35 How the Internet Works.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 43 History of the Internet..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 50 Basic Network Utilities..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 52 Other Network Devices..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 59 Advanced Network Communications Topics..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 60 Cloud Computing.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 61 Summary..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 65
Chapter 3: Cyber Stalking, Fraud, and Abuse 74 Introduction..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 74 How Internet Fraud Works..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 75 Identity Theft..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 80 Cyber Stalking..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 82 Protecting Yourself Against Cybercrime..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 91 Summary..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 99
Chapter 4: Denial of Service Attacks 106 Introduction..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 106 DoS Attacks..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 107 Illustrating an Attack..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 107 Common Tools Used for DoS Attacks..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 109 DoS Weaknesses..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 112 Specific DoS Attacks.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 112 Real-World Examples of DoS Attacks..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 120 How to Defend Against DoS Attacks..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 121 Summary..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 123
Chapter 5: Malware 130 Introduction..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 130 Viruses..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 131 Trojan Horses..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 142 The Buffer-Overflow Attack.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 145 Spyware..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 146 Other Forms of Malware..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 149 Detecting and Eliminating Viruses and Spyware.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 153 Summary..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 159
Chapter 6: Techniques Used by Hackers 166 Introduction..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 166 Basic Terminology..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 167 The Reconnaissance Phase..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 167 Actual Attacks..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 177 Malware Creation.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 184 Penetration Testing..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 187 The Dark Web.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 189 Summary..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 194
Chapter 7: Industrial Espionage in Cyberspace 200 Introduction..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 200 What Is Industrial Espionage?..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 202 Information as an Asset.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 203 Real-World Examples of Industrial Espionage..
.
.
.
.
.
.
.
.
.
.
.
.
.
. 205 How Does Espionage Occur?.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 207 Protecting Against Industrial Espionage..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 212 Trade Secrets..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 215 The Industrial Espionage Act..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 218 Spear Phishing..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 219 Summary..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 220
Chapter 8: Encryption 226 Introduction..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 226 Cryptography Basics..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 227 History of Encryption..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 228 Modern Cryptography Methods..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 236 Public Key (Asymmetric) Encryption..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 245 &
Chapter 1: Introduction to Computer Security 2 Introduction..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 2 How Seriously Should You Take Threats to Network Security?.
.
.
.
.
.
.
.
.
. 4 Identifying Types of Threats..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 7 Assessing the Likelihood of an Attack on Your Network..
.
.
.
.
.
.
.
.
.
.
. 17 Basic Security Terminology.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 18 Concepts and Approaches..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 21 How Do Legal Issues Impact Network Security?..
.
.
.
.
.
.
.
.
.
.
.
.
.
. 24 Online Security Resources..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 25 Summary..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 27
Chapter 2: Networks and the Internet 34 Introduction..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 34 Network Basics..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 35 How the Internet Works.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 43 History of the Internet..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 50 Basic Network Utilities..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 52 Other Network Devices..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 59 Advanced Network Communications Topics..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 60 Cloud Computing.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 61 Summary..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 65
Chapter 3: Cyber Stalking, Fraud, and Abuse 74 Introduction..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 74 How Internet Fraud Works..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 75 Identity Theft..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 80 Cyber Stalking..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 82 Protecting Yourself Against Cybercrime..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 91 Summary..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 99
Chapter 4: Denial of Service Attacks 106 Introduction..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 106 DoS Attacks..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 107 Illustrating an Attack..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 107 Common Tools Used for DoS Attacks..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 109 DoS Weaknesses..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 112 Specific DoS Attacks.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 112 Real-World Examples of DoS Attacks..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 120 How to Defend Against DoS Attacks..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 121 Summary..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 123
Chapter 5: Malware 130 Introduction..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 130 Viruses..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 131 Trojan Horses..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 142 The Buffer-Overflow Attack.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 145 Spyware..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 146 Other Forms of Malware..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 149 Detecting and Eliminating Viruses and Spyware.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 153 Summary..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 159
Chapter 6: Techniques Used by Hackers 166 Introduction..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 166 Basic Terminology..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 167 The Reconnaissance Phase..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 167 Actual Attacks..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 177 Malware Creation.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 184 Penetration Testing..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 187 The Dark Web.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 189 Summary..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 194
Chapter 7: Industrial Espionage in Cyberspace 200 Introduction..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 200 What Is Industrial Espionage?..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 202 Information as an Asset.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 203 Real-World Examples of Industrial Espionage..
.
.
.
.
.
.
.
.
.
.
.
.
.
. 205 How Does Espionage Occur?.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 207 Protecting Against Industrial Espionage..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 212 Trade Secrets..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 215 The Industrial Espionage Act..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 218 Spear Phishing..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 219 Summary..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 220
Chapter 8: Encryption 226 Introduction..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 226 Cryptography Basics..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 227 History of Encryption..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 228 Modern Cryptography Methods..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 236 Public Key (Asymmetric) Encryption..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 245 &
De oplyste priser er inkl. moms
Butikker og åbningstid
Handler du som firma
Forretningsbetingelser
Porto og forsendelse
Data & cookiepolitik
Handler du som firma
Forretningsbetingelser
Porto og forsendelse
Data & cookiepolitik
Find pensumliste
FAQ for studerende
Pensumlistegaranti
Sortiment og levering
Kompendier(for undervisere)
FAQ for studerende
Pensumlistegaranti
Sortiment og levering
Kompendier(for undervisere)
Polyteknisk Boghandel og Forlag A/S - Anker Engelundsvej 1 - 2800 Lyngby
Tlf 77 42 43 44 - email poly@polyteknisk.dk - CVR 34072655 - Sydbank Reg: 6748 Konto 0001107927
Tlf 77 42 43 44 - email poly@polyteknisk.dk - CVR 34072655 - Sydbank Reg: 6748 Konto 0001107927