From Voice Video Policy Security Technical Implementation Guide
Part of SRG-POL-300750
Associated with: CCI-000670
External information system services are services that are implemented outside of the authorization boundaries of organizational information systems. This includes services that are used by, but not a part of, organizational information systems. FISMA and OMB policy require that organizations using external service providers that are processing, storing, or transmitting federal information or operating information systems on behalf of the federal government ensure that such providers meet the same security requirements that federal agencies are required to meet.
Review each Voice Video system security plan (SSP). Verify that the organization requires providers of external Voice Video system services to employ security controls defined by CNSSI 1253 in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance. The commercial provider will normally document these is Service Level Agreements (SLA) or another contract. If the Voice Video SSP does not document, and the organization does not enforce, that providers of external Voice Video system services employ security controls as indicated above, this is a finding.
Document in the Voice Video SSP that the organization must require that providers of external Voice Video system services employ security controls defined by CNSSI 1253 in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance. Append the SLA, or other contract documentation, from the commercial provider detailing the controls.
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