KomikoAI Data Breach

What Happened

In February, the AI-powered comic generation platform KomikoAI suffered a data breach. The incident exposed 1M unique email addresses along with names, user posts and the AI prompts used to generate content. The exposed data enables the mapping of individual AI prompts to specific email addresses.

Compromised Data

AI prompts
Email addresses
Forum posts
Names

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Breach Overview

  • Affected Accounts:

    1.1 million

  • Breach Occurred:

    February 2026

  • Added to HIBP:

    2 Mar 2026

Recommended Actions

Change Your Password

If you haven’t already changed the password affected by this breach, do so immediately on every account where it was used.

Enable Two-Factor Authentication

Wherever 2FA is supported, add an extra layer of security to your account.

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Use a password manager to generate and store strong, unique passwords for all your accounts. 1Password helps protect your data with industry-leading security.

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