# SI-10(3) — Predictable Behavior

- **Control ID:** SI-10(3)
- **Family:** [SI](/md/families/SI.md)
- **Baselines:** No content available.
- **Enhancement of:** [SI-10](/md/controls/SI-10.md)

## Description

Verify that the system behaves in a predictable and documented manner when invalid inputs are received.

## Discussion

A common vulnerability in organizational systems is unpredictable behavior when invalid inputs are received. Verification of system predictability helps ensure that the system behaves as expected when invalid inputs are received. This occurs by specifying system responses that allow the system to transition to known states without adverse, unintended side effects. The invalid inputs are those related to the information inputs defined by the organization in the base control ( \[SI-10\](\#si-10)).

## Implementation guidance

No content available.

## CSF 2.0 subcategories

No content available.

## Related controls

No content available.

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Derived from official NIST publications (NIST SP 800-53 Rev 5 and NIST CSF 2.0). nistcontrols.com is not affiliated with NIST.