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2026 · Data breach

Neogen

Breached 29 August 2026 · Published 9 October 2026 · neogen.com

435,963Accounts exposed
56/100Serious severity
7Types of data
VerifiedBy HIBP

On 29 August 2026, Neogen was breached. 435,963 accounts were exposed, including email addresses, employers, job titles. MyRecon rates it 56/100, serious.

Were you part of this breach?

Only a result for this incident is shown. On submission, your email is sent through MyRecon to XposedOrNot for a breach lookup. MyRecon does not save this check to your history. Provider coverage can be incomplete.

The story behind the breach

In August 2026, the food and animal safety organisation Neogen was the target of a ShinyHunters "pay or leak" extortion attempt . The group later published data it claimed had been obtained from Neogen. The data consisted largely of corporate contact records and included 436k unique email addresses from mailing lists, employee records and other contacts.

Breach description from Have I Been Pwned, used under a CC BY 4.0 licence.

How did it happen?

The published account does not explain the exact way the data was obtained.

What was the motive?

In August 2026, the food and animal safety organisation Neogen was the target of a ShinyHunters "pay or leak" extortion attempt .

Reported demands or attempts to sell data describe what happened, rather than prove every attacker's intention.

What was the outcome?

435,963 accounts are listed in this breach. This is a count of accounts, not necessarily individual people.

The reported exposed data includes Email addresses, Employers, Job titles, Names, Phone numbers, Physical addresses, Salutations.

What was exposed, and why it matters

What to do if you were in it

  1. Move two-factor authentication off SMS and onto an authenticator app, which a SIM swap cannot intercept.
  2. Be sceptical of post and callers who already know your address, knowing it is no longer evidence of anything.
  3. Expect better-aimed phishing. A message that already knows your name and where you have an account is the whole point of a breach like this.

Questions people ask about this breach

Was my email address in the Neogen breach?

Use the email box on this page. The result applies only to this incident. If the provider does not cover this breach, we say so. A missing match does not prove you were unaffected.

What data was leaked in the Neogen breach?

email addresses, employers, job titles, names, phone numbers, physical addresses, salutations. Each one is explained above, along with what it means for the person it belongs to.

When did it happen, and when did it become public?

The breach is dated 29 August 2026. It was published to Have I Been Pwned on 9 October 2026, a gap of 41 days during which the data was already out.

Is the Neogen breach real?

Yes. Have I Been Pwned lists it as verified, meaning the data was checked against the source rather than taken on trust.

How many people were affected?

435,963 accounts. That is accounts rather than people, one person often has several.

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Three kinds of content appear on this page and they are kept apart deliberately. The breach description is quoted from Have I Been Pwned under its licence. The severity score, the field-by-field explanation and the advice are computed from the record itself, every sentence derives from a number or a flag in it, which is what stops the analysis drifting from the evidence. Anything under the "MyRecon's take" byline is editorial: our reading of this breach, presented as opinion rather than as a finding.

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