All Breaches
December 21, 2020 Verified Retail

NetGalley Data Breach

The NetGalley data breach affected approximately 1,436,435 user records according to the record dated December 21, 2020. The listed fields are dates of birth, email addresses, IP addresses, names, passwords, phone numbers, physical addresses, and usernames.

1.4 Million
Reported Records
8
Data Types
Critical
Severity
Oct 9, 2026
Last updated

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Exposed Data Types

8
  • Dates of birth
  • Email addresses
  • IP addresses
  • Names
  • Passwords
  • Phone numbers
  • Physical addresses
  • Usernames

About This Breach

Password reuse creates an account-takeover risk. Names, phone numbers, addresses, and birth dates can personalize fake book, publishing, or review messages, while IP data adds a privacy concern.

A match in the NetGalley record means that the queried email address or username corresponds to a listed field; it does not prove that every field was exposed for the same person. Change reused passwords, close active sessions, and verify publishing or review requests through the official portal.

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.

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