Industry — Data Breach
Executive Summary
Data breach reported by HIBP — KomikoAI - 1,060,191 breached accounts: 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...
What Happened
In February 2026, the AI-powered comic generation platform KomikoAI experienced a data breach that exposed information from approximately 1,060,191 accounts. The breach revealed one million unique email addresses along with associated names, user posts, and the AI prompts that users had submitted to generate comic content. The exposed data allows for the direct linking of specific AI prompts to individual email addresses.
Who Is Affected
Users of the KomikoAI platform who created accounts and used the service to generate AI-powered comics are affected. The breach impacts anyone whose email address, name, user posts, or AI generation prompts were stored on the platform. Approximately 1.06 million accounts were compromised in total.
Why It Matters
This breach is significant because it exposes not just traditional account information but also the creative prompts users submitted to an AI system, which may reveal personal interests, intentions, or sensitive information users thought was private. The ability to map specific AI prompts to individual email addresses creates a detailed profile of users' creative activities and potentially their thoughts or preferences. This represents a new category of privacy risk associated with AI-powered platforms where user inputs to generative systems can be exposed.
What You Should Do
If you have a KomikoAI account, you should assume your email address, name, posts, and AI prompts have been exposed. Change your password immediately if you reused the same password on other accounts. Be alert for targeted phishing emails that may reference your specific AI prompts or content creation activities to appear legitimate. Consider the potential sensitivity of the prompts you submitted and assess whether any exposed information could be used against you.
AI-Assisted
Event summaries are generated by Claude AI from verified sources and reviewed by humans before publication.
Sources
- KomikoAI - 1,060,191 breached accounts
- Quitbro - 22,874 breached accounts
- Lovora - 495,556 breached accounts
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