Nonprofit

Triathlon Japan

Triathlon Japan (Shinjuku, Tokyo; Other services) appears in 1 related cybersecurity incident. The latest was disclosed on 2026-11-04.

Profile

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Metric	Value	Scope	As of	Source
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		Incident	Role	Impact level				Methods	Impacts		Status
2026-11-04	2026-11-09	Lawson Entertainment: sports-entry breach puts 27,908 people’s data at risk, including health questionnaires	[Through a supplier]	[Critical]	[Critical]	5 Dentsu Soken Inc., Lawson Entertainment, Inc., Triathlon Japan, Tokorozawa City, Ohme Marathon Foundation	Saitama, Tokyo	[Intrusion][Misconfiguration]	[Data leak]	27,908	[Contained]