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Cisco Certified Support Technician (CCST) Networking 100-150 v1.0 · Domain 6: Security

CIA triad: confidentiality, integrity, availability

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Last reviewed September 25, 2026 · Leer en español

The CIA triad is the core model of information security. It names the three properties that security controls aim to protect. When you evaluate a risk, an attack or a control, you can ask which of the three it affects.

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