All Breaches
September 1, 2016 Verified Spam Data List Business contact data provider

NetProspex Spam Data List

The NetProspex data breach is associated with the 2016 online leak of a large business directory list containing corporate communication and marketing data.

33.7 Million
Email Identifiers
6
Data Types
Critical
Exposure Scope
Yes
Verification

Exposed Data Types

6
Email addresses
Employers
Job titles
Names
Phone numbers
Physical addresses

Additional Information

Added DateMarch 15, 2017
Breach DateSeptember 1, 2016
Domainnetprospex.com
SourceVerified breach record
Last Content UpdateJuly 29, 2026

Verification and editorial method

LeakData compares the incident name, date, affected-record count, and exposed data types with accessible sources. Unverified fields are not presented as facts, and records are updated when new evidence becomes available.

Report missing or incorrect information

Record Information

Record NameNetProspex
CategoryBusiness contact data provider
CountryUnited States
Related Websitewww.netprospex.com

Risk Level

Critical

The reported impact exceeds 1 million and falls within the critical severity band.

Protect Yourself

Check whether you were affected by this breach

Check Now