The HITRUST CSF integrates requirements from multiple authoritative sources (e.g., HIPAA, NIST 800-53, ISO 27001, PCI-DSS). However, the CSF does not replicateall requirements verbatimfrom each framework.
Instead, HITRUST rationalizes, harmonizes, and normalizes these sources into asingle unified framework.
This means that overlapping requirements across standards are consolidated into common control references, reducing redundancy. Additionally, not every provision from an authoritative source is represented; instead, HITRUST includes requirements that are most relevant to information protection and compliance assurance.
For example, PCI-DSS operational practices like business rules may not appear exactly as written, but their security objectives are captured within CSF control statements. Therefore, the CSF is comprehensive and risk- based, but it does not literally encompass every requirement word-for-word.
References:HITRUST CSF Overview - "Integration of Authoritative Sources"; CCSFP Study Guide -
"Harmonization and Rationalization."