Mercer Data Breach (February 2026)
merceradvisors.com
About This Breach
Mercer Advisors, a financial advisory firm, was allegedly breached by the ShinyHunters group in February 2026, exposing 321k unique email addresses along with names, phone numbers, physical addresses, and dates of birth.
Data Exposed
Breach Details
| Breach Type | Data Breach |
| Searchable | Yes |
| Verified | Yes |
| Sensitive Data | No |
| Reference | No reference available |
Frequently Asked Questions
How do I check if I was in the Mercer breach?
Type your email address into the search box on our data breach check page. If it appears in the Mercer breach, or any other, you'll see the breach name, date and what was exposed. It's free and nothing you type is stored.
When did the Mercer data breach happen?
Mercer was breached in Feb 2026. The breach was added to the XposedOrNot index on July 3, 2026.
How many records were exposed in the Mercer breach?
320,684 records were exposed, making it the #586 largest of the 796 breaches in our index.
What data was exposed in the Mercer breach?
The exposed data includes: Email addresses, Phone numbers, Names, Physical addresses, Dates of birth.
What should I do if I was affected by the Mercer breach?
No password was in this breach, so the main risk is phishing. Be wary of emails, calls or texts that quote these details, turn on two-factor authentication, and set up free breach alerts on XposedOrNot so you know the moment your email appears in a new breach.
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What Should You Do?
Enable Two-Factor Authentication
Add 2FA on all supported accounts using an authenticator app like Google Authenticator or Authy.
Watch for Phishing Calls & SMS
Be cautious of unexpected calls or texts asking for personal information.
Beware of Scam Mail
Be skeptical of unexpected correspondence requesting personal details.
Monitor Your Accounts
Set up login alerts and review account activity regularly for suspicious access.