LuminPDF
luminpdf.com
About This Breach
Lumin PDF, a cloud-based PDF editing and sharing platform, suffered a data breach in 2019 that exposed the personal information of more than 15 million users. The stolen data included email addresses, passwords (stored as bcrypt hashes), and Google tokens, which could have potentially given unauthorized access to other Google services. The breach was believed to have been caused by a vulnerability in Lumin PDF's backend infrastructure.
Data Exposed
Breach Details
| Breach Type | Data Breach |
| Searchable | Yes |
| Verified | Yes |
| Sensitive Data | No |
| Reference | https://www.zdnet.com/article/data-of-24-3-million-lumin-pdf-users-shared-on-hacking-forum/ (opens in new tab) |
Frequently Asked Questions
When did the LuminPDF data breach happen?
LuminPDF was breached in Apr 2019. The breach was added to the XposedOrNot index on November 8, 2023.
How many records were exposed in the LuminPDF breach?
15,453,070 records were exposed, making it the #97 largest of the 763 breaches in our index.
What data was exposed in the LuminPDF breach?
The exposed data includes: Names, Email addresses, Genders, Passwords, Usernames, Spoken languages.
What should I do if I was affected by the LuminPDF 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.
More Information Technology Breaches
What Should You Do?
Change Your Passwords
Update your password immediately, using 12+ characters with numbers and symbols.
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.
Use a Password Manager
Never reuse passwords: use a password manager to generate unique ones for each account.