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Fundamentals of Information Systems Security Lesson 3

Fundamentals of Information Systems Security Lesson 3 Malicious Attacks, Threats, and Vulnerabilities. Learning Objective. Describe how malicious attacks, threats, and vulnerabilities impact an IT infrastructure. Key Concepts.

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Fundamentals of Information Systems Security Lesson 3

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  1. Fundamentals of Information Systems Security Lesson 3 Malicious Attacks, Threats, and Vulnerabilities

  2. Learning Objective • Describe how malicious attacks, threats, and vulnerabilities impact an IT infrastructure.

  3. Key Concepts • Attacks, threats, and vulnerabilities in a typical IT infrastructure • Common security countermeasures typically found in an IT infrastructure • Risk assessment approach to securing an IT infrastructure • Risk mitigation strategies to shrink the information security gap

  4. DISCOVER: CONCEPTS

  5. Definitions

  6. Types of Threats • Brute-force password attacks • Dictionary password attacks • IP address spoofing • Hijacking • Replay attacks • Man-in-the-middle attacks

  7. Types of Threats • Masquerading • Social engineering • Phishing • Phreaking • Pharming

  8. Types of Vulnerabilities

  9. Identify the Criminal Criminal Profile #1 • Victimizes people through unsolicited e-mail messages to get victim’s money • Does not rely on intrusive methods to commit crimes • Is motivated by financial gain

  10. Identify the Criminal (Continued) Criminal Profile #2 • Enters systems without permission to raise awareness of security issues • Does not work for the company or its clients • Does not intend harm, just tries to be “helpful” • Is motivated by impulse

  11. Identify the Criminal (Continued) Criminal Profile #3 • Engages in illegal black market transactions on the Internet • Traffics drugs, weapons, or banned materials • Is motivated by financial gain

  12. Identify the Criminal (Continued) Criminal Profile #4 • Enters systems without permission to take advantage of security issues • Does not work for the company or its clients • Does not intend to help, only wants to cause harm • Is motivated by peer acceptance

  13. Identify the Criminal (Continued) Criminal Profile #5 • Intrudes upon systems to verify and validate security issues • Works for the company or one of its clients • Does not intend harm, just tries to be “helpful”

  14. Summary • Threats are controllable. • Risks are manageable. • Vulnerabilities are unavoidable. • All of these negatively affect the C-I-A triad. • Not all threats are intentional.

  15. Virtual Lab • Performing a Vulnerability Assessment

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