AC-11(1)—Session Lock

PBMM (P2)

Secret (P2)

Technical

>Control Description

SESSION LOCK | PATTERN-HIDING DISPLAYS The information system conceals, via the session lock, information previously visible on the display with a publicly viewable image.

>Supplemental Guidance

Publicly viewable images can include static or dynamic images, for example, patterns used with screen savers, photographic images, solid colors, clock, battery life indicator, or a blank screen, with the additional caveat that none of the images convey sensitive information.

>Tailoring Guidance

This security control/enhancement is considered to be best practice. Consequently, inclusion in a departmental profile is strongly encouraged in most cases.

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