Backup and Disaster Recovery

Last reviewed Jun 1, 2026 Content v20260601

Track mode

none

Means

Read / quiz

Reading

~1 min

Level

beginner

This lesson

This lesson teaches Backup and Disaster Recovery: security mindset, common threats, and defensive practices for software teams.

Teams apply Backup and Disaster Recovery in every serious Cybersecurity rollout—skipping it leaves blind spots in reviews and incidents.

You will apply Backup and Disaster Recovery in contexts like: Web apps, APIs, CI/CD, and organizational compliance programs.

Read scenario-based lessons, map controls to code you write on other tracks, and complete MCQs—practice threat modeling on paper or in docs.

When you can explain the previous lesson's ideas in your own words.

Ransomware and operator error demand tested backups—offline/immutable copies attackers cannot encrypt.

3-2-1 rule preview

3 copies, 2 media types, 1 offsite—adapt for cloud snapshots.

Quarterly restore test—untested backups are hope, not strategy.

Recovery Point Objective (data loss window) and Recovery Time Objective (downtime)—align with business.

Q: Immutable backup?
A: Cannot be altered by ransomware on production creds.
Q: RPO?
A: How much data you may lose in worst case.

Tip: Calendar quarterly restore test—assign owner.

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