AC-07.4 ยท Use of Alternate Authentication Factor

Control Description

Allow the use of {{ insert: param, ac-07.04_odp.01 }} that are different from the primary authentication factors after the number of organization-defined consecutive invalid logon attempts have been exceeded; and Enforce a limit of {{ insert: param, ac-07.04_odp.02 }} consecutive invalid logon attempts through use of the alternative factors by a user during a {{ insert: param, ac-07.04_odp.03 }}.

Impact Baselines
Security baselines where this control applies
Not in any baseline
Control Properties
SP800-53-enhancement
organization
Enhancement
Control Statement
The control requirements

(a) Allow the use of {{ insert: param, ac-07.04_odp.01 }} that are different from the primary authentication factors after the number of organization-defined consecutive invalid logon attempts have been exceeded; and

(b) Enforce a limit of {{ insert: param, ac-07.04_odp.02 }} consecutive invalid logon attempts through use of the alternative factors by a user during a {{ insert: param, ac-07.04_odp.03 }}.

Supplemental Guidance

The use of alternate authentication factors supports the objective of availability and allows a user who has inadvertently been locked out to use additional authentication factors to bypass the lockout.

Related NIST Controls
Other NIST 800-53 controls related to this one