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Assessment Title
Rule Text
An IP-based VTC system implementing a single CODEC supporting conferences on multiple networks having different classification levels (i.e., unclassified, SECRET, TOP SECRET, TS-SCI) must support Periods Processing by being sanitized of all information while transitioning from one period/network to the next.
Description
Discussion Text
All residual data (data that is unintentionally left behind on computer media) must be cleared before transitioning from one period/network to the next. Since the equipment is reused, non-destructive techniques are used.
According to NIST Special Publication 800-88:
Clearing information is a level of media sanitization that would protect the confidentiality of information against a robust keyboard attack. Simple deletion of items would not suffice for clearing. Clearing must not allow information to be retrieved by data, disk, or file recovery utilities. It must be resistant to keystroke recovery attempts executed from standard input devices and from data scavenging tools. For example, overwriting is an acceptable method for clearing media.
According to NIST Special Publication 800-88:
Clearing information is a level of media sanitization that would protect the confidentiality of information against a robust keyboard attack. Simple deletion of items would not suffice for clearing. Clearing must not allow information to be retrieved by data, disk, or file recovery utilities. It must be resistant to keystroke recovery attempts executed from standard input devices and from data scavenging tools. For example, overwriting is an acceptable method for clearing media.
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