EvidenceSheet
ACSC Essential Eight Maturity Model (November 2023) · Multi-factor authentication

MFA-ISM-1873 Multi-factor authentication used for authenticating customers of online customer services provides a…

Multi-factor authentication used for authenticating customers of online customer services provides a phishing-resistant option. Required at Maturity Level Two of the Multi-factor authentication mitigation strategy (Appendix B); ISM control ISM-1873 in ASD's Essential Eight to ISM mapping (December 2023). At Maturity Level Three this requirement is replaced by ISM-1874 (phishing-resistant multi-factor authentication for customers).

Source: ACSC Essential Eight Maturity Model (November 2023), MFA-ISM-1873. The statement above is our statement of the clause, read from the published text and cited so you can check it against the official text, not the instrument verbatim. Open ACSC Essential Eight Maturity Model (November 2023) in the compliance library.

Each row is an ISM control the maturity model requires, with the maturity levels named in its text. Pick your target maturity level and use the rows for it.

2
artefacts
0
held by a system
0
at each review
hard
to go live
Policy repository / GRC workspace
where the evidence lives
teal = a system already holds it · olive = produced at each review. To go live: easy when half or more of the artefacts are already held by a system, moderate from a quarter to a half, hard below a quarter.

These are the artefacts auditors commonly ask for on this requirement, our guidance rather than text from the standard. Your assessor decides what is sufficient in your context, and asks for samples across the period when a report covers one.

system holds itEvidence a system already holds

none for this control

periodic reviewEvidence produced at each review

none for this control

governing documentDocuments that govern the control

  • Customer authentication options showing a phishing-resistant option is offered · Policy repository / GRC workspace
  • Customer help material describing the option · Policy repository / GRC workspace

First move

No system holds this evidence for you: it is people and documents. Reminders and routing to the owner still save time. Put the document under version control with an owner and review date, and log each review as a record with reviewer and date.

Common gaps auditors find

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MFA-ISM-1872 Multi-factor authentication used for authenticating users of online services is phishing-resistant · MFA-ISM-1874 Multi-factor authentication used for authenticating customers of online customer services is…