Preventive Control

Updated 31 Jul 2026

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def
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  a control that blocks access to a resource — "you shall not pass" — whether or not the person was warned first
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examples
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  a locked door, fencing, requiring login credentials to access a computer
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  firewall rules, following security policy, a guard shack checking all identification
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related
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  Security Control Types
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  Deterrent Control
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cards
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  What does a preventive control do, and give an example?
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    Blocks access outright — e.g. a locked door, firewall rules

Linked references 4