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CIS Benchmarks

Also known as: Center for Internet Security Benchmarks

Industry-standard hardening guides published by the Center for Internet Security. Widely used as the baseline reference for system hardening in CMMC programs.

The CIS Benchmarks are configuration guidelines published by the Center for Internet Security (CIS) for hardening operating systems, cloud services, applications, and network devices. There are over 100 benchmarks covering everything from Windows Server and Ubuntu to Microsoft 365 and Kubernetes.

For CMMC purposes, CIS Benchmarks are one of the two most common references contractors cite when documenting their baseline configurations under CM.L2-3.4.1. The benchmarks define multiple levels (Level 1 for general use, Level 2 for high-security environments) so contractors can pick the strictness appropriate to their risk profile.

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