Substack confirms data breach affects users’ email addresses and phone numbers
Why it matters
Substack has confirmed a data breach affecting users' email addresses and phone numbers, which occurred in October 2025 but was only discovered in early February.
Article tone
Neutral
How the article is written, as reported by the source.
Expected market reaction
Market impact analysis based on bearish sentiment with 70% confidence.
Evidence trail
Evidence
Source
TechCrunch
Claim
Substack confirms data breach affects users’ email addresses and phone numbers
AI inference
Bearish · 70%
Generated
2026-02-05 14:55
AI provenance
Technical identifiers
- Provider tag
- groq-llama-3.1-8b-instant
- Analysis version
- groq-llama-3.1-8b-instant
- Article id
- 42076
Original source
Substack said that customer data was accessed in October 2025, but wasn't discovered until early February.
Read the full article on TechCrunch
Original article published by TechCrunch on February 5, 2026. Analysis and insights provided by AnalystMarkets AI.