1.4 Billion Records
About This Breach
4iQ, a cybersecurity company, uncovered a massive credential collection in 2017 containing more than 1.4B unique username and password combinations along with email addresses and IP addresses. The dataset was widely circulated on dark web marketplaces and represented data aggregated from multiple prior breaches rather than a single incident.
Data Exposed
Breach Details
| Breach Type | Combo List |
| Searchable | Yes |
| Verified | Yes |
| Sensitive Data | No |
| Reference | https://www.forbes.com/sites/leemathews/2017/12/11/billion-hacked-passwords-dark-web/?sh=632358521f2f (opens in new tab) |
Frequently Asked Questions
When did the 1.4 Billion Records data breach happen?
1.4 Billion Records was breached in Mar 2017. The breach was added to the XposedOrNot index on November 8, 2023.
How many records were exposed in the 1.4 Billion Records breach?
1,114,303,554 records were exposed, making it the #1 largest of the 783 breaches in our index.
What data was exposed in the 1.4 Billion Records breach?
The exposed data includes: Email addresses, Names.
What should I do if I was affected by the 1.4 Billion Records breach?
Change your password on the affected service (and anywhere you reused it), 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.
What Should You Do?
Enable Two-Factor Authentication
Add 2FA on all supported accounts using an authenticator app like Google Authenticator or Authy.
Monitor Your Accounts
Set up login alerts and review account activity regularly for suspicious access.