Breach Database / Lumin PDF

▍Yes — Lumin PDF was breached.

• 15.5 million accounts affected
• Breach occurred 2019-04-01 · luminpdf.com
• Verified entry in the Have I Been Pwned catalog

What happened

In April 2019, the PDF management service Lumin PDF suffered a data breach. The breach wasn't publicly disclosed until September when 15.5M records of user data appeared for download on a popular hacking forum. The data had been left publicly exposed in a MongoDB instance after which Lumin PDF was allegedly been "contacted multiple times, but ignored all the queries". The exposed data included names, email addresses, genders, spoken language and either a bcrypt password hash or Google auth token.

What data was exposed

• Auth tokens
• Email addresses
• Genders
• Names
• Passwords
• Spoken languages
• Usernames

What to do right now

1. 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").
2. 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.
3. Expect convincing phishing emails. Attackers use breached details to write personalized emails. Be suspicious of any message referencing this service.
4. Check your other accounts on Have I Been Pwned. Your email address may appear in other breaches you don't know about yet.
5. 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.