Substack Confirms Data Breach, "Limited User Data" Compromised

Infosecurity Magazine

February 6, 2026 at 4:22 PM

Overview

Substack has confirmed that it experienced a data breach, although the company did not disclose how many users were affected. While the details surrounding the breach remain limited, Substack mentioned that only a small amount of user data was compromised. This incident raises concerns about the security of users' personal information on the platform, especially given the growing number of breaches affecting online services. Users of Substack should remain vigilant, as data breaches can lead to phishing attempts and other security risks. The lack of specific details about the breach leaves many questions unanswered, particularly regarding what types of data were compromised and how the breach occurred.

Key Takeaways

Affected Systems: Substack user data
Timeline: Newly disclosed

Original Article Summary

Substack did not specify the number of users affected by the data breach

Impact

Substack user data

Exploitation Status

The exploitation status is currently unknown. Monitor vendor advisories and security bulletins for updates.

Timeline

Newly disclosed

Remediation

Not specified

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to Phishing, Data Breach.

Read Original Article

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