Lecture Notes: Physical Security and Surveillance Systems

Introduction

• Video Surveillance: Common in organizations for facility security.
  • Known as CCTV (Closed Circuit Television).
  • Advantages over human guards: larger area coverage, longer time periods.
  • Features: object detection, motion detection, passive infrared (view in the dark).
  • Networked setup: multiple cameras linked to a central Network Video Recorder (NVR).

Asset Tracking

• Tags for Devices: Used for routers, switches, fiber modules, etc.
  • Integrated with financial systems for tracking purchases, installations, and depreciation.
  • Tags may include a barcode, number, and organization name for easy identification.

Hardware Tampering Sensors

• Tampering Detection: Alerts for case removal.
  • Found in personal computers, firewalls, routers, switches, and other network devices.
  • Can be combined with asset tags for enhanced security.

Employee Training

• Importance of Training: Employees as a key security element.
  • Training to identify security issues.
  • Utilization of posters, signs, login messages, and intranet for ongoing education.
  • Continuous training procedures are essential.

Access Control Hardware

• Types of Access Control: Gates, locks, cameras, etc.
  • Integrated systems: badge in to access elevators, video surveillance.
  • Central management console for access configurations.
  • Authentication Methods:
    • Electronic systems: keyless entry, personal identification numbers (PIN).
    • Biometric systems: fingerprints, retina scans, voice prints.
  • Advantages of Biometrics: Consistent over time, difficult to fake, no need for periodic changes.

Access Control Vestibules

• Highly Secure Areas: Data centers with controlled entry.
  • One-person or multi-person rooms with sequential door locks.
  • Prevents tailgating, ensures controlled access.
  • Examples: PIN and biometric readers.

Smart Lockers

• Package Security: Used for secure deliveries.
  • Online orders delivered to lockers with secure access via PIN.
  • Prevents package theft.

Data Disposal

• Secure Disposal: Prevent unauthorized data access.
  • Legal mandates for data retention.
  • Options: physical destruction or data sanitization.
  • Factory reset for devices: deletes personal info, logs, encryption keys.
  • Data wiping for hard drives and SSDs: ensures no data recovery.