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data loss

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2026-09-21

Backup: Part 2 — The 3-2-1 Rule and Its Modern Variant

#backup #data #ransomware #data loss #3-2-1

The most well-known backup scheme is the “3-2-1” rule. It was formulated by photographer Peter Krogh in a book about storing digital archives, and since then it has become widely accepted in IT. The rule is …

2026-09-21

Backup: Part 1 — Why it's needed and what counts as a backup

#backup #data #ransomware #data loss

Documents, customer databases, financial statements, website files — a business can’t operate without them. You can lose them for many reasons: accidental deletion, disk failure, ransomware, laptop theft, office …