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Principles of Networking Security Chapters 3 & 4

Principles of Networking Security Chapters 3 & 4. Matt Lavoie NST281-01. Chapter 3: Operational and Organizational Security. Matt Lavoie NST281-01. Security in Your Organization. Policy: A broad statement of accomplishment Procedure: The step-by-step method to implement a policy

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Principles of Networking Security Chapters 3 & 4

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  1. Principles of Networking SecurityChapters 3 & 4 Matt Lavoie NST281-01

  2. Chapter 3:Operational and Organizational Security Matt Lavoie NST281-01

  3. Security in Your Organization • Policy: A broad statement of accomplishment • Procedure: The step-by-step method to implement a policy • Standards: Mandatory elements of implementing a policy • Guidelines: Recommendations related to a policy

  4. Security in Your Organization • Policy Lifecycle: • Plan • Implement • Monitor • Evaluate • Establish a security perimeter

  5. Physical Security • Mechanisms to restrict physical access to computers and networks • Locks (combination/biometric/keyed) • Video surveillance, logs, guards • A room has six sides • Physical barriers (gates/walls, man-traps, open space)

  6. Environmental Issues • HVAC Systems: Climate control • UPS/Generators: Power failure • Fire Protection: Detect/suppress • Off-Site Backups: Bad stuff happens

  7. Other Issues • Wireless • Wi-Fi / Cellular / Bluetooth • Electromagnetic Eavesdropping • TEMPEST • Location • Bury the sensitive stuff

  8. Chapter 4:The Role of People in Security Matt Lavoie NST281-01

  9. Social Engineering • Making people talk • Questions, emotions, weaknesses • Obtaining insider info (or having it) • Knowledge of security procedures • Phishing • Impersonation

  10. Social Engineering • Vishing • Trust in voice technology (VoIP, POTS) • Shoulder surfing • Observation for passcodes, PINs, etc • Reverse social engineering • Victim initiates contact

  11. Poor Security Practices • Password selection • Too short • Not complicated • Easy to guess • Information on a person • Password policies • Can encourage bad behavior

  12. Poor Security Practices • Same password, multiple accounts • One compromises all • Piggybacking • Controlled access points • Dumpster Diving • Sensitive information discarded

  13. Poor Security Practices • Installing software/hardware • Backdoors/rogue access points • Physical access by non-employees • Control who gets in • Pizza and flowers • Legitimate access, nefarious intentions

  14. People as a Security Tool • Security Awareness • Training/refreshers • Be alert • Don’t stick your head in the sand • Individual User Responsibilities • Keep secure material secure

  15. What Have We Learned? In a properly secured environment, people are the weakest link A system with physical access is a compromised system

  16. Questions and Answers

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