Cyber Signal — A 17-year-old was arrested in Osaka on December 4, 2025, aft — OpenWatch

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Cyber Signal — A 17-year-old was arrested in Osaka on December 4, 2025, aft — OpenWatch

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Cybercrisis🇯🇵Japan 🇲🇱MaliMay 4, 2026

A 17-year-old was arrested in Osaka on December 4, 2025, after using malicious code to steal personal data from over 7 million users of Kaikatsu Club, Japan's largest internet cafe chain. The teenager told investigators he carried out the hack to raise money for Pokémon cards.

Severity: 4.5/10Source: The Hacker NewsLocation: Osaka, Osaka

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