Backup & Recovery

The Importance of Backup and Recovery

A backup is a representative copy of data at a specific time. The phrase "backup and recovery" usually refers to the transfer of copied files from one location to another, along with the various operations performed on those files.

A good backup strategy is essential for data security. Backup is the last defense against data loss, providing a way to restore original data. It has the following advantages:

• Protecting you in the event of hardware failure, accidental deletions or disaster;
  
• Protecting you against unauthorised changes made by an intruder;
  
• Providing you with a history of an intruder's activities by looking through archived, older backups.

Steps for Backup & Recovery

Backup & recovery consists of a cycle of iterative activities and processes that require ongoing monitoring and control.

Step 1 Plan & Prepare

Step 2 Identify Assets & Backup Requirements

Step 3 Select & Develop Backup Strategy

Step 4 Implement & Monitor Backup Strategy

Step 5 Recovery Drill Test

Sources

• SME Information Security Guideline (2007 Third Edition) (in PDF Format), HKCERT
  
  
• IT Security Guidelines (G3)