Authentication Policy
An authentication policy is a documented set of rules governing how credentials are created, stored, rotated, and revoked within an organisation. It is required evidence for HIPAA, PCI-DSS, SOC 2, and ISO 27001 audits.
An authentication policy is a formal document that defines an organisation's rules for credential creation, complexity, storage, rotation, and revocation. Compliance frameworks including HIPAA, PCI-DSS v4.0, SOC 2, and ISO 27001 require a documented authentication policy as evidence of formal access control procedures.
What must an authentication policy cover?
A compliant authentication policy must document: minimum password length and character requirements, prohibited password patterns (dictionary words, sequences), multi-factor authentication requirements, credential storage requirements (hashing algorithm, salt), rotation and expiry rules, account lockout thresholds, and procedures for credential compromise response. PassGeni's Policy Generator creates framework-specific documents covering all required elements.
Authentication policy vs. password policy
These terms are often used interchangeably, but authentication policy is broader. A password policy covers credential rules specifically. An authentication policy covers all authentication methods: passwords, MFA, SSO tokens, biometrics, API keys, and service account credentials. Most compliance frameworks require the broader scope.
Which frameworks require a written authentication policy?
HIPAA §164.308(a)(5)(ii)(D) explicitly requires written procedures for 'password management.' PCI-DSS Requirement 12.1 requires a documented information security policy covering all Requirement 8 controls. SOC 2 CC1.4 requires policies to be formalised, approved, communicated, and reviewed. ISO 27001 A.9.3.1 requires documented authentication information procedures. ISO 27001 requires the document to be reviewed annually.
How often should an authentication policy be reviewed?
ISO 27001 requires annual review. PCI-DSS requires review at least annually and after significant changes. SOC 2 auditors check that the policy has been reviewed within the audit period. Best practice is annual review plus a triggered review after any security incident, technology change, or major organisational change.
Frequently asked questions
Is an authentication policy the same as a password policy?
Not exactly. A password policy covers password-specific rules. An authentication policy covers all credential types: passwords, MFA tokens, API keys, biometrics, and session controls. Compliance frameworks typically require the broader authentication policy.
Who should approve an authentication policy?
Under ISO 27001 and SOC 2, policies must be approved by management. HIPAA requires a designated Security Officer. PCI-DSS requires approval by executive management or a designated security officer (DSO).
Can I use PassGeni's Policy Generator for a real compliance audit?
Yes. PassGeni's Policy Generator produces framework-specific documents that cite the specific regulation clauses (e.g. HIPAA §164.308(a)(5)(ii)(D)). The output is a starting point — review it with your security officer or legal counsel before submitting to auditors.
Does NIST require a written authentication policy?
NIST SP 800-63B is a guideline, not a mandate. However, federal agencies and organisations that follow NIST as their security standard typically formalise it in a written policy. For organisations subject to FISMA, a written authentication policy is required under SP 800-53 Control IA-5.
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