Incidents on Jul 6, 2026

Publication date: Dates are source publication dates (JST), not occurrence dates.

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Showing 5 of 5 incidents

Incidents on Jul 6, 2026
Date	Target	Summary	Classification	Source links
Jul 6, 2026 AI-001	Bandai Channel	S ProductionRoughly 46,800 accounts were fraudulently unsubscribed (cause/issue: a 15-year-old created an attack program with ChatGPT; the intrusion route has not been disclosed).	Abuse of AIPossibleNews report	news.tv-asahi.co.jp (Broken link) sakigake.jp
Jul 6, 2026 LEAK-013	JCOM	S 2,473,191 peopleA vulnerability in the KDDI mail system was exploited, leaking email addresses of 2,473,191 J:COM NET users and 118,752 users of mail services for partner cable operators. Password leaks were confirmed for 1,257 of the latter.	Supply chainConfirmedOfficial statement	newsreleases.jcom.co.jp
Jul 6, 2026 LEAK-010	Nifty '@nifty Mail'	S 2,248,708 peopleA vulnerability in third-party software in the KDDI-provided mail platform was exploited, leaking email addresses of 2,248,708 persons, of whom 1,862,462 also had mail passwords leaked.	Supply chainConfirmedOfficial statement	nifty.co.jp
Jul 6, 2026 LEAK-011	Chubu Telecommunications (ctc)	A 727,176 peopleThe KDDI mail system underlying the Commufa Hikari and Business Commufa mail services suffered unauthorized access, leaking email addresses of 727,176 persons, of whom 724,344 also had mail passwords leaked.	Supply chainConfirmedOfficial statement	ctc.co.jp
Jul 6, 2026 LEAK-012	STNet 'Pikara'	A 456,159 recordsA vulnerability in the KDDI mail system used by mail services such as Pikara Hikari was exploited, leaking 456,159 email address and password sets of 397,152 customers. Access to STNet's data took place from June 14 to 17.	Supply chainConfirmedOfficial statement	stnet.co.jp

Incidents on Jul 6, 2026