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Lumin PDF

Disclosed Sep 18, 201915,453,048 accountsUnverified

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 is known

People affected15,453,048 (accounts in the leaked data, per Have I Been Pwned)
DisclosedSep 18, 2019
HappenedApr 1, 2019
AttackHacking
Data exposedCredentials and tokensEmailsNamesPasswordsDates of birth
SectorTech
StatusUnverified: not yet confirmed by an official notice, a filing or the organization
Check your emailHave I Been Pwned

Sources

Notices filed

History of this record
Added2026-09-25
First recordedby backfillSource

First seen 2026-09-25 (Have I Been Pwned). Record counts are as reported. Not legal advice.

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