Breach Database / WHMCS
Yes — WHMCS was breached.
- 134,047 accounts affected
- Breach occurred 2012-05-21 · whmcs.com
- Verified entry in the Have I Been Pwned catalog
What happened
In May 2012, the web hosting, billing and automation company WHMCS suffered a data breach that exposed 134k email addresses. The breach included extensive information about customers and payment histories including partial credit card numbers.
What data was exposed
- Email addresses
- Email messages
- Employers
- IP addresses
- Names
- Partial credit card data
- Passwords
- Payment histories
- Physical addresses
- Website activity
What to do right now
- Change your password for this service now. And change it anywhere you reused the same password — attackers try leaked passwords on other sites within hours ("credential stuffing").
- Turn on two-factor authentication. Even a leaked password is useless against an account protected by a second factor. Prefer an authenticator app over SMS.
- Watch your card and bank statements. Set up transaction alerts, and consider a card freeze or replacement if the exposure included full card numbers.
- Watch for targeted phishing mail. A leaked home address makes postal and doorstep scams more convincing.
- Expect convincing phishing emails. Attackers use breached details to write personalized emails. Be suspicious of any message referencing this service.
- Check your other accounts on Have I Been Pwned. Your email address may appear in other breaches you don't know about yet.
- Monitor the apps you use going forward. Clearly watches the breach record for the companies behind your apps and alerts you the moment one appears.
Breach data from Have I Been Pwned. Listing here means the service appears in the public breach record — not that your personal data was affected.