# SC-09 Transmission Confidentiality

NIST SP 800-53 control. Family: SC System and Communications Protection. Function: preventative. In no baseline. Mapping licence: CC BY-SA 4.0.
Withdrawn from SP 800-53 by NIST. Its content moved into SC-08.

Statement: The information system protects the confidentiality of transmitted information.
Guidance: If the organization is relying on a commercial service provider for transmission services as a commodity item rather than a fully dedicated service, it may be more difficult to obtain the necessary assurances regarding the implementation of needed security controls for transmission confidentiality. When it is infeasible or impractical to obtain the necessary security controls and assurances of control effectiveness through appropriate contracting vehicles, the organization either implements appropriate compensating security controls or explicitly accepts the additional risk. NIST Special Publication 800-52 provides guidance on protecting transmission confidentiality using Transport Layer Security (TLS). NIST Special Publication 800-77 provides guidance on protecting transmission confidentiality using IPsec. NSTISSI No. 7003 contains guidance on the use of Protective Distribution Systems. Related security control: AC-17.

## Patterns that use it (11)
- Critical (6): SP-005 SOA Internal Service Usage Pattern; SP-007 Wireless- Public Hotspot Pattern; SP-013 Data Security Pattern; SP-019 Secure Ad-Hoc File Exchange Pattern; SP-020 Email Transport Layer Security (TLS) Pattern; SP-026 PCI Full Environment
- Important (4): SP-006 Wireless- Private Network Pattern; SP-008 Public Web Server Pattern; SP-011 Cloud Computing Pattern; SP-022 Board of Directors Room
- Standard (1): SP-023 Industrial Control Systems

## Clauses by framework (4 frameworks)
- osfi_b13: B-13.3.2
- finma_circular: IV.C(63), IV.D(78), IV.D(81)
- gdpr: Art.32(1)(a), Rec.83
- hkma_tme1: TME1.8.5

## More
- This control as JSON, with guidance and ATT&CK techniques: /api/v1/controls/SC-09
- Clauses only: /api/v1/controls/SC-09?fields=mappings
- Page for people: /controls/sc-09/