ISO/IEC DIS 27045.2 Draft International Standard Stage 40.60 Close of voting, 7 August 2026 Publication estimate 15 September 2027 Kit USD 799 or watch USD 49 a month
ISO 27045 Revision CheckerBig data risk, read from the draft

Dated record and free checker

Big data risk guidance is one ballot from publication. The record is the work.

ISO/IEC DIS 27045.2 gives guidance on the security and privacy risks that big data brings, characteristic by characteristic, and it reached close of voting on 7 August 2026. This site records the public draft clause by clause, the changes since the first draft, the evidence an auditor will ask for, and a free check that tells you whether it applies to your estate and what to do before your next audit.

Read from the real rules, not invented. Every answer ISO 27045 Revision Checker gives points to the official rule behind it, so you can check any line yourself.

Read from the real rules26 units behind it14 changes checked

Run the free checkRead the record

No account, no email, no upload. The six answers stay in your browser. The check is computed from the record on this site and states the clause it used.

Colleagues at a table reviewing printed charts and a laptop screen
One draft. Eight characteristics. One decision. The guidance does not ask whether your organisation is large or regulated. It asks whether you develop or use big data systems. The work is to name the characteristics that appear in your estate and show the evidence for each, before the audit asks.

Your result will appear here. Six answers on the free check produce an applicability line, a preparation date and three actions. It starts blank and says scope incomplete until you answer.

Open the free check

01The record

What the document is, and where it stands

ISO/IEC DIS 27045.2 is a Draft International Standard in the ISO/IEC 27000 family. Its scope gives guidance on managing the risks and threats that arise across the big data life cycle from volume, velocity, variety, variability, volatility, veracity, validity and value. It applies to every organisation that develops or uses big data systems, whatever its type, size or purpose, and it covers big data used in the design and implementation of AI systems.

The public record shows stage 40.60, close of voting, reached on 7 August 2026. The draft is 26 pages and the official edition is sold by ISO at 67 Swiss francs. Clause 2 makes ISO/IEC 27005:2022 and ISO/IEC 22989:2022 normative references, so the risk process and the AI vocabulary come from those two documents rather than from this one.

Publication is estimated for 15 September 2027. That is our arithmetic from the stage sequence, not an ISO announcement, and the page that carries it says so. Read the dated record.

02What changed

The second draft is not a tidy-up of the first

Fourteen changes are visible between the public text of the first draft and this one. Validity is added to the scope, so the characteristics go from seven to eight. ISO/IEC 22989:2022 becomes a normative reference. Nine definitions are rewritten, and one of them fixes a defect: the first draft defined veracity with the wording of vulnerability.

The change table states each row in our own words, with the clause, what the earlier draft said, what this one says, and what to do about it. It is the page a consultant can use before a client meeting, and it is free.

Open the change table

03The characteristics

Eight characteristics, eight questions for the estate

Clause 5.2 describes each characteristic and how it affects security. The pages below take each one, state the risk in plain words, and name the check an auditor will make and the evidence to keep. Veracity and validity are kept apart, because the draft keeps them apart and the difference changes the question.

3.1.21VolumeLayers of storage and transmission, different networks and protocols, and a mix that makes normalisation hard.Read the characteristic3.1.18VelocityA breach that is over before a batch control notices, a stream that bypasses the control in front of the warehouse, and a model whose data changed before its review.Read the characteristic3.1.17VarietySensitive data that classification never reached, and re-identification by correlating an anonymised set with a public one.Read the characteristic3.1.16VariabilityA schema change that stops a masking rule matching, a semantic change that makes an old classification wrong, and a quality drop that makes a report misleading without making it fail.Read the characteristic3.1.20VolatilityData kept because storage is cheap, an audit trail whose timestamps no longer line up with the decision it explains, and a retention rule that has drifted from the analysis it serves.Read the characteristic3.1.19VeracityRisks that aggregate and magnify, decisions built on data whose source is uncertain, and AI-generated data that is unreliable in a way the reader cannot see.Read the characteristic3.1.14ValidityA model that loses validity when the data it was trained on changes, analysis that answers a question nobody asked, and a data set that is accurate but not fit for the decision.Read the characteristic3.1.15ValueInsight worth stealing and worth manipulating, derived data sets that inherit weak access rules from the raw data, and a board metric that can be changed without a trace.Read the characteristic
04The clause map

Every unit of the document, and what is public

The draft has 26 units: the numbered clauses, their subclauses, and Annex A. The public view carries the table of contents, the foreword, the introduction, clauses 1, 2, 3.1, 3.2 and 5. Clauses 4, 6 and 7 and Annex A are withheld, so their pages state the unit's position and what to prepare, and do not state text that is not public.

6 units carry public text, 17 carry a title only and 3 are group headings. The record says which is which on every page.

Open the clause map Defined terms

05The free check

Does it apply to you, and what do you do before the audit?

Six closed questions. No upload, no account, no email. The result is an applicability line with the clause behind it, a preparation date, the characteristics to test first, and three dated actions. It does not score compliance and it does not certify.

The check starts blank. An unanswered question returns scope incomplete, never a pass, because the honest answer to an incomplete picture is that the picture is incomplete.

06The kit

The buyer's fill-in document, not a summary

The USD 799 kit is the obligation register for all 26 units, the 126-item evidence list by characteristic, the dated plan working back from the estimate, and the 14-row change table, as PDF, CSV and XLSX. It is built so a reader can fill in the estate column and hand it to an auditor or a board.

The five free specimen rows show the shape without an account. The kit arrives by one click to checkout, with no sign-in form before the payment page.

07The watch

What the change watch sends

USD 49 a month. An email when the stage, the dates, the public text or the record changes, with the diff that changed it. The watch is for the months between close of voting and publication, when a briefing built on this record has to know that the document moved.

It does not watch your own risk register, your audit dates or your supplier list. It watches the record this site publishes, re-checked against the official sources.

What the watch covers

08Four markets

The regimes that sit around the guidance

The document is international guidance. The duties an organisation carries come from its own jurisdiction, so the rules page names the frameworks in our library that matter to a big data estate in the United States, the European Union, the United Kingdom and Australia, in that order, with a section per market. Where a regime is named but not held, the page says so.

Read the four-market page

09Questions

Questions buyers ask

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All answers

10Built from

Read from the real rules, not invented. Every answer ISO 27045 Revision Checker gives points to the official rule behind it, so you can check any line yourself.

Read from the real rules26 units behind it14 changes checkedCheck any line yourself

The rules this is built from

  • ISO/IEC DIS 27045.2 26 units, the public scope, terms and clause 5, stage 40.60 framework page
  • ISO/IEC 27002:2022 93 control titles, used for the control catalogue the draft names framework page

Nothing here is guessed while you wait. Each requirement is written from the text and points to the exact clause it came from, and where the public draft withholds a clause, the page says so and does not state it.