# NIST 800-53 System and Communications Protection (SC)

Browse NIST 800-53 System and Communications Protection (SC) controls — protect communications and system boundaries — with implementation guidance and cross-framework mappings.

* [SC-1: Policy and Procedures](/compliance/nist-sp-800-53/sc/sc-1)
* [SC-2: Separation of System and User Functionality](/compliance/nist-sp-800-53/sc/sc-2)
* [SC-3: Security Function Isolation](/compliance/nist-sp-800-53/sc/sc-3)
* [SC-4: Information in Shared System Resources](/compliance/nist-sp-800-53/sc/sc-4)
* [SC-5: Denial-of-service Protection](/compliance/nist-sp-800-53/sc/sc-5)
* [SC-6: Resource Availability](/compliance/nist-sp-800-53/sc/sc-6)
* [SC-7: Boundary Protection](/compliance/nist-sp-800-53/sc/sc-7)
* [SC-8: Transmission Confidentiality and Integrity](/compliance/nist-sp-800-53/sc/sc-8)
* [SC-10: Network Disconnect](/compliance/nist-sp-800-53/sc/sc-10)
* [SC-11: Trusted Path](/compliance/nist-sp-800-53/sc/sc-11)
* [SC-12: Cryptographic Key Establishment and Management](/compliance/nist-sp-800-53/sc/sc-12)
* [SC-13: Cryptographic Protection](/compliance/nist-sp-800-53/sc/sc-13)
* [SC-15: Collaborative Computing Devices and Applications](/compliance/nist-sp-800-53/sc/sc-15)
* [SC-16: Transmission of Security and Privacy Attributes](/compliance/nist-sp-800-53/sc/sc-16)
* [SC-17: Public Key Infrastructure Certificates](/compliance/nist-sp-800-53/sc/sc-17)
* [SC-18: Mobile Code](/compliance/nist-sp-800-53/sc/sc-18)
* [SC-20: Secure Name/Address Resolution Service (Authoritative Source)](/compliance/nist-sp-800-53/sc/sc-20)
* [SC-21: Secure Name/Address Resolution Service (Recursive or Caching Resolver)](/compliance/nist-sp-800-53/sc/sc-21)
* [SC-22: Architecture and Provisioning for Name/Address Resolution Service](/compliance/nist-sp-800-53/sc/sc-22)
* [SC-23: Session Authenticity](/compliance/nist-sp-800-53/sc/sc-23)
* [SC-24: Fail in Known State](/compliance/nist-sp-800-53/sc/sc-24)
* [SC-25: Thin Nodes](/compliance/nist-sp-800-53/sc/sc-25)
* [SC-26: Decoys](/compliance/nist-sp-800-53/sc/sc-26)
* [SC-27: Platform-independent Applications](/compliance/nist-sp-800-53/sc/sc-27)
* [SC-28: Protection of Information at Rest](/compliance/nist-sp-800-53/sc/sc-28)
* [SC-29: Heterogeneity](/compliance/nist-sp-800-53/sc/sc-29)
* [SC-30: Concealment and Misdirection](/compliance/nist-sp-800-53/sc/sc-30)
* [SC-31: Covert Channel Analysis](/compliance/nist-sp-800-53/sc/sc-31)
* [SC-32: System Partitioning](/compliance/nist-sp-800-53/sc/sc-32)
* [SC-34: Non-modifiable Executable Programs](/compliance/nist-sp-800-53/sc/sc-34)
* [SC-35: External Malicious Code Identification](/compliance/nist-sp-800-53/sc/sc-35)
* [SC-36: Distributed Processing and Storage](/compliance/nist-sp-800-53/sc/sc-36)
* [SC-37: Out-of-band Channels](/compliance/nist-sp-800-53/sc/sc-37)
* [SC-38: Operations Security](/compliance/nist-sp-800-53/sc/sc-38)
* [SC-39: Process Isolation](/compliance/nist-sp-800-53/sc/sc-39)
* [SC-40: Wireless Link Protection](/compliance/nist-sp-800-53/sc/sc-40)
* [SC-41: Port and I/O Device Access](/compliance/nist-sp-800-53/sc/sc-41)
* [SC-42: Sensor Capability and Data](/compliance/nist-sp-800-53/sc/sc-42)
* [SC-43: Usage Restrictions](/compliance/nist-sp-800-53/sc/sc-43)
* [SC-44: Detonation Chambers](/compliance/nist-sp-800-53/sc/sc-44)
* [SC-45: System Time Synchronization](/compliance/nist-sp-800-53/sc/sc-45)
* [SC-46: Cross Domain Policy Enforcement](/compliance/nist-sp-800-53/sc/sc-46)
* [SC-47: Alternate Communications Paths](/compliance/nist-sp-800-53/sc/sc-47)
* [SC-48: Sensor Relocation](/compliance/nist-sp-800-53/sc/sc-48)
* [SC-49: Hardware-enforced Separation and Policy Enforcement](/compliance/nist-sp-800-53/sc/sc-49)
* [SC-50: Software-enforced Separation and Policy Enforcement](/compliance/nist-sp-800-53/sc/sc-50)
* [SC-51: Hardware-based Protection](/compliance/nist-sp-800-53/sc/sc-51)

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