MEDIUM

Substack Confirms Data Breach, "Limited User Data" Compromised

Infosecurity Magazine • Feb 06, 2026

MEDIUM

Substack data breach leaks users’ email addresses and phone numbers

CSO Online • Feb 05, 2026

MEDIUM

Substack says intruder lifted emails, phone numbers in months-old breach

The Register Security • Feb 05, 2026

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Substack Discloses Security Incident After Hacker Leaks Data

SecurityWeek • Feb 05, 2026

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Newsletter platform Substack notifies users of data breach

BleepingComputer • Feb 05, 2026