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#5 SecurityWeek general July 09, 2026 at 12:18 UTC

12 Million Impacted by Data Breach at Japanese Telco KDDI

By Ionut Arghire

AI Summary

Japanese telco KDDI disclosed a data breach affecting approximately 12 million customers after attackers exploited a zero-day vulnerability in a third-party system to access a KDDI-operated ISP email platform. The breach is among the largest telecom incidents reported in Japan, exposing customer records at scale.

Read full article → https://www.securityweek.com/12-million-impacted-b…

Relevance score: 81.0/100

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