Dossier
Kaikatsu Club
Coverage of Kaikatsu Club in the Nexus archive.
- 2026: The Year of AI-Assisted Attacks
A 17-year-old was arrested in Osaka for running malicious code to extract personal data of over 7 million users from Kaikatsu Club, Japan's largest internet cafe chain, to buy Pokémon cards. The arrest was made under Japan’s Unauthorized Access Prohibition Act on December 4, 2025. This incident highlights a case of AI-assisted attacks.