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Response snapshot Oct 27, 2026, 03:12 UTC

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Disclosed incidenthibp-zenbusiness

ZenBusiness breach: 5,118,184 accounts exposed

In March 2026, the hacker and extortion group "ShinyHunters" claimed to have obtained a substantial corpus of data from ZenBusiness , a business formation and compliance platform.

At a glance

Sources
1 source

What to do

If you or your organization used this service, change reused passwords, watch for phishing that uses the exposed data, and check the disclosure for the organization's guidance.

Read Have I Been Pwned: ZenBusiness (opens a new tab)

What happened

In March 2026, the hacker and extortion group "ShinyHunters" claimed to have obtained a substantial corpus of data from ZenBusiness , a business formation and compliance platform. The group claimed the data had been exfiltrated from platforms including Snowflake, Mixpanel and Salesforce, and threatened to publish it if a ransom was not paid.

The following month, after claiming payment had not been made, ShinyHunters publicly released the data. The collection amounted to many terabytes across thousands of files that appeared to originate from multiple systems and business functions, including leads, support records and other CRM-related data.

The data contained approximately 5M unique email addresses, often accompanied by name and phone number depending on the source file.

Related technology

Sources

  1. Primary source

    Have I Been Pwned: ZenBusiness (opens a new tab)

    Verified breach loaded into Have I Been Pwned: account count, exposed data types, and dates.

    Published Checked

  2. Primary source

    Have I Been Pwned breach API (opens a new tab)

    The breach list that supplied this entry.

    Published Date not suppliedChecked

Cite this record

For factual claims, cite the primary sources above; cite KEVWire for its compilation, dates, and classifications.

APA

KEVWire. (2026, May 2). ZenBusiness breach: 5,118,184 accounts exposed. https://kevwire.com/record/hibp-zenbusiness

MLA

"ZenBusiness breach: 5,118,184 accounts exposed." KEVWire, 2 May 2026, kevwire.com/record/hibp-zenbusiness.

Chicago

KEVWire. "ZenBusiness breach: 5,118,184 accounts exposed." Last modified May 2, 2026. https://kevwire.com/record/hibp-zenbusiness.

Evidence summary (plain text)

ZenBusiness breach: 5,118,184 accounts exposed (May 2, 2026).
In March 2026, the hacker and extortion group "ShinyHunters" claimed to have obtained a substantial corpus of data from ZenBusiness , a business formation and compliance platform. The group claimed the data had been exfiltrated from platforms including Snowflake, Mixpanel and Salesforce, and threatened to publish it if a ransom was not paid. The following month, after claiming payment had not been made, ShinyHunters publicly released the data. The collection amounted to many terabytes across thousands of files that appeared to originate from multiple systems and business functions, including leads, support records and other CRM-related data. The data contained approximately 5M unique email addresses, often accompanied by name and phone number depending on the source file.
Sources:
Have I Been Pwned: ZenBusiness: https://haveibeenpwned.com/Breach/ZenBusiness
Have I Been Pwned breach API: https://haveibeenpwned.com/api/v3/breaches
Record ID: hibp-zenbusiness.
Record origin: Ingested record.
AI evidence: Not assessed.
About this data

This record was ingested from a data source. Retrieved: Oct 27, 2026, 02:25 UTC. Ingestion is not an independent editorial investigation.

Verified by Have I Been Pwned. Breach date: 2026-03-27; loaded 2026-05-02. Exposed data: Email addresses, Names, Phone numbers. Counts are accounts in the loaded data, not necessarily distinct people.

Technology tags indicate possible relevance, not verified exposure. Confirm the affected product, version, and configuration against your own inventory; KEVWire does not scan your systems.

A personal reading checklist on this device, not verified remediation.

Record JSON

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