5.1M records in March 2026. Check whether your email is in this file — then read what was taken and what to do.
5.1M
Records exposed
2026
Year
3
Data types
Free
To check
Quick answer — was ZenBusiness breached?
Yes. ZenBusiness was breached in March 2026, exposing 5,118,184 records including email addresses, names, phone numbers. This breach has been independently verified. If your email was involved, your data may still be at risk today. Check if you were affected.
What happened in the ZenBusiness data breach?
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.
The exposed data included 3 types of personal information. Learn more about what a data breach means for you.
Why was the ZenBusiness breach so dangerous?
The ZenBusiness breach exposed 5,118,184 records — 5.1M people whose personal data is now circulating in criminal markets.
If you used ZenBusiness, check whether your email was exposed in this breach.
What data was stolen in the ZenBusiness breach?
Email addresses — used for phishing attacks and credential stuffing against your other accounts
Names — used to build profiles and target you with personalised scams
Phone numbers — enables SIM-swapping attacks and targeted SMS phishing
Is the ZenBusiness breach still dangerous in 2026?
Yes. Stolen data from the ZenBusiness breach remains dangerous years after the incident. Attackers routinely compile data from multiple breaches to build complete profiles, and credentials from 2026 are still actively used in automated attacks today.
Personal information like email addresses, phone numbers, and dates of birth does not expire. Even if you changed your ZenBusiness password, the other exposed data can be combined with information from other breaches to target you. Learn how long stolen data stays dangerous.
What to do if your email was in the ZenBusiness breach
1
Change your ZenBusiness password immediately
Log into ZenBusiness and change your password to something strong and unique — one you have never used anywhere else. A password manager after a breach can generate and store a unique password so you never reuse one.
2
Change any account sharing that password
If you reused this password elsewhere, walk the password-reuse change checklist. You can also check whether that password appears in known leaks without sending the password itself.
3
Enable two-factor authentication
Turn on 2FA or a passkey after a breach on ZenBusiness and every important account. Even if your password is known, attackers cannot sign in without the second factor.
4
Check your other accounts for this breach
Run a full email scan to see every breach your address appears in — not just this one. Then follow the after-breach playbook. If a password from this incident is still in use, check it without sending the password itself.
Check all my breaches — free5
Shrink people-search listings if your name or address was exposed
A leaked email plus a public people-search page makes phishing more convincing. That is a separate job from changing passwords. See the data broker opt-out guide for official forms and, if you want help, removal services.
Frequently asked about the ZenBusiness breach
How many people were affected by the ZenBusiness data breach?
Approximately 5,118,184 user records were exposed in the ZenBusiness breach in March 2026.
Is the ZenBusiness breach still a risk in 2026?
Yes. Leaked credentials are actively used in credential-stuffing attacks years after a breach. If you reused your ZenBusiness password elsewhere and have not changed it, those accounts remain at risk today.
How do I check if my email was in the ZenBusiness breach?
Enter your email in the free checker on EmailLeaked. We scan millions of breach records including the ZenBusiness dataset and tell you instantly whether your email was exposed and what data was taken.
What should I do if I was in the ZenBusiness breach?
Change your ZenBusiness password immediately, update any account where you used the same password, and enable two-factor authentication on all important accounts. Use a unique password for every account — a password manager makes this straightforward — and monitor for phishing emails over the next 90 days.
How this breach page is reviewed
Breach pages are built from structured breach records and reviewed for practical risk guidance by EmailLeaked. Risk labels reflect exposed data types and are intended to help readers prioritise action.
Other major breaches
Was your email in this breach?
Check if your email appeared in the ZenBusiness breach and 1033+ other known breaches — free, instant, no signup.
Check my email — freeWas my email hacked?
Check if your email is compromised in seconds. Free, private, no signup. Scan millions of breach records across 1034+ known breaches.
Check my email now — it's freeNo signup required · Results in under 5 seconds · Your data is never stored