What does 'scrubbed by an independent third party' mean in a data sale?

Short answer

'Scrubbed by an independent third party' means someone other than the buyer removes personal identifiers from records before delivery. It describes who does the cleaning, not how well it works. Owners should ask for named parties, written rules the company approved, sample testing and a ban on re-identification, since scrubbing lowers risk without eliminating it.

What does 'scrubbed by an independent third party' mean in a data sale?: overview of What does "scrubbed by an independent third party" mean?, What does independent de-identification actually involve?, What can scrubbing not promise?, Is there a standard an owner can borrow?, How can an owner verify the scrubbing?
Covered on this page: What does "scrubbed by an independent third party" mean? · What does independent de-identification actually involve? · What can scrubbing not promise? · Is there a standard an owner can borrow? · How can an owner verify the scrubbing?

What does "scrubbed by an independent third party" mean?

It means someone other than the buyer, and ideally other than the seller, removes or masks personal identifiers from the records before the buyer ever receives them. The phrase describes who does the cleaning and when. It does not describe how well the cleaning works.

That distinction is the whole issue. A buyer's statement that data will be "scrubbed of personal information by a third party before receipt" is a promise about process. An owner should turn it into a contract term, a named party and a test they can inspect.

What does independent de-identification actually involve?

In practice it is a pipeline with several stages, and each stage can be done well or badly.

  1. Scope the records. The company decides which systems, date ranges and units are in scope, and which are excluded entirely.
  2. Define the identifiers. Names, email addresses, phone numbers, account numbers, ID numbers and similar fields are listed, along with indirect identifiers such as job titles, project names, client names and locations.
  3. Detect. Automated tools flag identifiers in structured fields and in free text such as email bodies, chat messages and ticket notes. Free text is the hard part, because people write names and details in unpredictable ways.
  4. Replace or remove. Each hit is deleted, masked or swapped for a consistent placeholder, so a workflow still reads as a workflow.
  5. Sample and test. Reviewers pull random samples, try to find leftover identifiers, and record the miss rate and what was done about it.
  6. Certify and hand over. The cleaned set is released with a written description of what was done, by whom and against which rules.

The independent part matters at steps 5 and 6. A party with no stake in a fast delivery is more likely to report an honest miss rate.

What can scrubbing not promise?

Scrubbing lowers risk. It does not remove it, and no honest vendor should say otherwise.

Claim you might hearWhat is actually trueWhat to ask for
"All personal information is removed"Detection in free text is imperfect, so some identifiers can surviveA stated sample size, a measured miss rate and a remediation step
"The data is anonymous"Combinations of role, project and timing can still point to a personA contractual ban on re-identification attempts
"A third party handles it"The third party may work to the buyer's rules, not yoursWritten rules the company approved before work began
"It is compliant"Compliance depends on the law that applies to the records, which varies by data type and stateCounsel's review of the applicable rules

Public criticism of recent data sales has focused on exactly this gap: opponents argue that cleaned records can sometimes be linked back to individuals. Owners should treat that argument as a reason to ask harder questions, not as a reason to dismiss the process. The companion page on re-identification risk in small teams covers the linkage problem in detail.

Is there a standard an owner can borrow?

For health information, yes. The US Department of Health and Human Services describes two recognized HIPAA de-identification methods: Expert Determination, where a qualified expert documents that the risk of re-identification is very small, and Safe Harbor, which removes 18 specified identifiers and requires no actual knowledge that what remains could identify someone.

Most business records are not health records, so HIPAA does not govern them. But the structure is a useful template: a named qualified party, a documented method and a written result. An owner can ask for the same three things on any dataset. This is general information, not legal, tax or financial advice. Confirm with your own counsel before relying on any standard for your records.

How can an owner verify the scrubbing?

Use this checklist before agreeing to anything.

  • The company, not the buyer, approves the identifier list and redaction rules in writing before work begins.
  • The party doing the scrubbing is named in the agreement, with its role and what it may see.
  • The agreement says whether the scrubbing happens on the company's side, in a controlled environment or after transfer.
  • A sample review is run on records the company chooses, and the company sees the results.
  • Known problem units, such as small teams, executive mailboxes and HR channels, are excluded rather than scrubbed.
  • The buyer commits in the contract not to attempt re-identification and not to pass the data on.
  • Delivery waits until the company gives final authorization.

At SourceX, de-identification and redaction requirements are agreed with the company before any work begins, and data is delivered only after an executed agreement and the company's authorization. Ask in writing who performs each step, because that detail belongs in your deal terms.

What does this mean for referral partners?

Partners never handle records, so a partner's job here is to be honest and brief. If an owner raises the phrase, explain that scrubbing is a process with named steps, that the company approves the rules, and that nothing moves without a signed agreement. The guide to answering an owner worried by AI data headlines has wording for that conversation, and sponsors weighing reputational exposure can read portfolio data licensing and reputational risk. Partners earn 25% of the eligible platform fees SourceX actually collects from the referred company's licensing deals, capped at $100,000 per referred company. The reward is paid only after the buyer pays and SourceX receives its fee; an introduction, meeting or signed agreement alone does not trigger payment, and no reward is guaranteed. The referral earnings calculator shows how the formula works.

When is scrubbing not enough?

Some records should not be licensed at all, however well they are cleaned.

  • Mainly consumer personal data with no licensing basis.
  • Mainly protected health information without HIPAA authorization or de-identification.
  • Data that belongs to clients who have not consented.
  • Small, long-tenured units where context identifies people even after names are gone.

If that describes the records, wait. The page on whether to wait before licensing and the one on what a license says about a company help owners weigh timing and optics.

Next step

If you know a US company with 50+ full-time employees at peak (contractors excluded) and years of records, register as a partner and make the introduction. Owners can also apply directly at sourcex.si/apply. Questions about the program are answered in the FAQ.

  1. Step 1Share your linkSend your personal link to a company you know.
  2. Step 2Company appliesThe company applies itself at /apply.
  3. Step 3Buyer selects and paysThe buyer selects and pays for the data and SourceX receives its fee.
  4. Step 4You get your rewardYour share of SourceX fees becomes payable.

Common questions

Who should do the scrubbing before a data sale?

Ideally a party with no stake in speed, working to rules the data owner approved in writing. The agreement should name the party, say what it may see and state where the work happens. The company should also be able to review samples before authorizing delivery.

Does scrubbing make a dataset anonymous?

No. Scrubbing removes direct identifiers and often masks indirect ones, but combinations of role, project, timing and writing style can still point to a person, especially in small teams. That is why contracts add re-identification bans and why some units are excluded entirely.

Can an owner see the scrubbed data before it goes to a buyer?

An owner can and should ask for a sample review as a condition of the agreement. At SourceX, redaction requirements are agreed with the company before work starts and delivery happens only after an executed agreement and the company's authorization.

What is a miss rate in de-identification?

It is the share of identifiers that detection tools or reviewers failed to catch in a tested sample. Asking for a stated sample size and miss rate turns a vague assurance into something measurable, and it shows what remediation was done.

Do HIPAA methods apply to ordinary business records?

HIPAA's de-identification methods apply to protected health information, not to most business email, chat or finance records. They are still a useful model of a named expert, a documented method and a written result. Ask counsel which rules govern your own data.

Free resources

By SourceX Partnerships Team · Published 2026-10-09 · Updated 2026-10-09

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