ShellCodeX Breach Report
Instant Checkmate Data Breach
instantcheckmate.com
Verified breach
Passwords exposed
Accounts exposed
11,943,887
Breach date
12 Apr 2019
Added to tracker
04 Feb 2023
Data classes
4
What happened
In 2019, the public records search service Instant Checkmate suffered a data breach that later came to light in early 2023. The data included almost 12M unique customer email addresses, names, phone numbers and passwords stored as scrypt hashes.
Exposed data
Email addresses
Names
Passwords
Phone numbers
Recommended actions
- Change your Instant Checkmate password immediately, and update it anywhere you reused the same password.
- Enable two-factor authentication on the affected account and on your critical services (email, banking).
- Watch for targeted phishing emails referencing Instant Checkmate — attackers weaponise breach data quickly.
- Stay alert for smishing (SMS phishing) and SIM-swap attempts using your phone number.
- Check whether your email address appears in this breach on haveibeenpwned.com.
Am I affected?
Check whether your email address appears in this breach.
Check on HIBP