Module 1. Introduction to Data Security

   

Introduction to Data Security



DATA VS INFORMATION

Information is processed data that carries meaning and value
The difference is subjective, what is data for one person may be information for another

SECURITY ELEMENTS
  • Confidentiality
  • Authenticity
  • Integrity
  • Availability
  • Nonrepudiation

POTENTIAL LOSS
  • Final loss
  • Unavailability of Resources
  • Identity theft and fraud
  • Loss of trust
  • Data loss/theft
  • Misuse of Computer Resources
IMPLEMENTING SECURITY
  • Precaution
    • Precautionary measures protect systems from threats and minimize damage. Key steps include installing and maintaining antivirus and firewall programs, using strong passwords, downloading files only from trusted sources, performing regular virus scans, and keeping the system updated.
  • Maintenance
    • System maintenance supports precautionary measures by ensuring security and efficiency. It involves creating data backups, updating antivirus and firewall programs, maintaining sufficient storage, preventing CPU overheating, and clearing browser caches. Regular maintenance enhances system protection and performance.
  • Reaction
    • No security measure is foolproof, but risks can be minimized. Quick user response is crucial in case of a data breach. To reduce damage, users should turn off the computer, disconnect from the network, and reinstall system applications. Planning ahead helps restore services efficiently.

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