Japanese Teen Allegedly Uses AI-Generated Program to Breach Kaikatsu Frontier and Leak Data of 7.3 Million Customers
A 17-year-old boy in Osaka was reportedly served an arrest warrant for allegedly breaching Kaikatsu Frontier's server using a program purportedly generated with a conversational AI tool. The January cyberattack may have exposed personal data of 7.3 million customers and disrupted business operations. Police say the suspect concealed malicious intent when prompting the AI. He was previously arrested for unrelated credit card fraud.
- Date it happened
- 2025-01-18
- Organisation involved
- Unnamed 17-year-old boy from Osaka
- Product, system or model
- Unknown generative AI systems, Large language models
This incident was imported from AI Incident Database and is used under CC BY-SA 4.0. Our additions to it — the structured fields, the translation, the checks against other reports — are published under the same licence.
This is a record of what was reported, not a finding that anyone broke the law. If it names your organisation and you believe it is wrong, the corrections process is free and open to everyone.