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BREACH BRIEF🟠 High Breach

NetGalley Breach Exposes 1.44M User Accounts and Weak Password Hashes

In December 2020 NetGalley disclosed a breach that released 1,436,435 user records containing PII and salted SHA‑1 password hashes. The event underscores the need for strong credential‑storage controls to meet audit and compliance expectations.

LiveThreat™ Intelligence · 📅 October 07, 2026· 📰 haveibeenpwned.com
🟠
Severity
High
BR
Type
Breach
🎯
Confidence
High
🏢
Affected
3 sector(s)
✅
Actions
3 recommended
📰
Source
haveibeenpwned.com

NetGalley Breach Exposes 1.44 M User Accounts and Weak Password Hashes

What Happened — In December 2020 the book‑promotion platform NetGalley suffered a data breach that released 1,436,435 user records. The exposed data included email addresses, names, usernames, physical and IP addresses, phone numbers, dates of birth, and passwords stored as salted SHA‑1 hashes.

Why It Matters for Trust & Control Assurance

  • The incident illustrates a failure to apply strong credential‑storage controls—exactly the type of gap a continuous control‑assurance program is built to detect and remediate.
  • Demonstrable evidence of robust password‑hashing algorithms, key‑management, and regular credential‑access monitoring is essential for audit readiness and defensible compliance reporting.
  • Mapping this breach to the “protect credentials” control area provides a single, cross‑framework assurance signal that satisfies many standards (e.g., NIST CSF 2.0, ISO 27001).

Who Is Affected – Publishing platforms, digital‑media services, and any organization that stores consumer‑level personally identifiable information (PII).

Recommended Actions

  • Review and upgrade password‑hashing practices to a modern, memory‑hard algorithm (e.g., Argon2, bcrypt, scrypt).
  • Implement continuous monitoring of credential‑access logs and generate immutable evidence for audit trails.
  • Conduct a gap analysis against the “credential protection” control objective and document remediation steps in your Trust Center.

Technical Notes – The breach source has not been publicly disclosed; the attack vector is listed as unknown. Exposed data types: email, name, username, physical address, IP address, phone number, date of birth, and salted SHA‑1 password hashes. Source: Have I Been Pwned – NetGalley breach

📰 Original Source
https://haveibeenpwned.com/api/v3/breach/NetGalley ↗

This LiveThreat Intelligence Brief is an independent analysis. Read the original reporting at the link above.

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