Substack said that customer data was accessed in October 2025, but wasn’t discovered until early February.
Newsletter platform Substack has confirmed a data breach in an email to users. The company said that in October, an “unauthorized third party” accessed user data, including email addresses, phone numbers, and other unspecified “internal metadata.”
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Source: TechCrunch | Published: 2026-02-05T14:55:02Z
Credit: TechCrunch
