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CompTIA Security+ SY0-701 · Domain 3: Security architecture

Data types and classifications

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Last reviewed September 25, 2026 · Leer en español

You cannot protect data well if you do not know what it is or how sensitive it is. Data classification labels information by its sensitivity and value so the organization can apply the right controls: stronger encryption, tighter access and careful handling for the most sensitive data, and lighter controls for public information. Classification also drives retention, disposal and incident response decisions. Security+ tests both the types of data you will encounter and the classification labels commonly used by businesses and governments.

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