What was exposed, when it happened, and which databases confirm it.
- accounts
- 5,118,184
- Breached
- March 27, 2026
- Last Update
- May 2, 2026
Were you caught in this breach?
Search your email, phone number or username against every record CheckLeaked indexes.
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.
Compromised Info
- Email addresses
- Names
- Phone numbers
Attestation
Four independent databases catalog this breach and they do not always agree. Each lane below is one source’s own count.
Sources & Link Methods
- HIBP
FAQ
What was leaked in the ZenBusiness breach?
The ZenBusiness breach exposed: Email addresses, Names, and Phone numbers.
When did the ZenBusiness breach happen?
The ZenBusiness breach was disclosed on March 27, 2026 and affected 5,118,184 records.
Am I affected by the ZenBusiness breach?
Search your email, phone or username at checkleaked.cc to find out whether your data appears in the ZenBusiness leak.