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Breach occurred 2026-03-27Verifiedzenbusiness.com
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.
Data exposed
Frequently asked questions
The ZenBusiness data breach occurred on March 27, 2026. It was added to Have I Been Pwned's breach catalog on May 2, 2026.
5,118,184 accounts were affected by the ZenBusiness data breach, according to Have I Been Pwned's records.
The ZenBusiness breach exposed the following data types: Email addresses, Names, Phone numbers.
Yes. Have I Been Pwned has verified the ZenBusiness breach, meaning there's confirmed evidence the exposed data is genuine and tied to real accounts.
Use KazaSec's free Email Breach Checker (/tools/breach-check) to check whether a specific email address has surfaced in the ZenBusiness breach, or any other known breach — the tool never stores what you search.
Our free Email Breach Checker tells you whether a specific email address has surfaced in this breach — or any other known breach — without ever storing what you search.
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