Data Enrichment Exposure From PDL Customer

Disclosed Nov 22, 2019622,161,052 accountsUnverified

In October 2019, security researchers Vinny Troia and Bob Diachenko identified an unprotected Elasticsearch server holding 1.2 billion records of personal data . The exposed data included an index indicating it was sourced from data enrichment company People Data Labs (PDL) and contained 622 million unique email addresses. The server was not owned by PDL and it's believed a customer failed to properly secure the database. Exposed information included email addresses, phone numbers, social media profiles and job history data.

What is known

People affected	622,161,052 (accounts in the leaked data, per Have I Been Pwned)
Disclosed	Nov 22, 2019
Happened	Oct 16, 2019
Attack	Not stated
Data exposed	EmailsEmploymentLocationNamesPhone numbers
Sector	Tech
Status	Unverified: not yet confirmed by an official notice, a filing or the organization
Check your email	Have I Been Pwned

Sources

Aggregatorhaveibeenpwned.com

Have I Been Pwned: Data Enrichment Exposure From PDL Customer

Notices filed

Accounts in the dataNov 22, 2019

Have I Been Pwned622,161,052 people

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.

Everything about Data Enrichment Exposure From PDL Customer