> JapanHacked_Cybersecurity incidents in Japan

Government

119 RAIDEN

119 RAIDEN (run by Arcadia, Inc.) was hit in 1 recorded cybersecurity incident. The latest was disclosed on 2026-10-13.

About the service

Website

https://www.arcadia.co.jp/products/speecan_119

Other names

119RAIDEN

Run by

Arcadia, Inc.

Category

Government

For

Businesses

Incident history

Disclosed 2026-10-13Updated 2026-10-26Aichi, Aomori, Chiba, Fukuoka, Hiroshima, Hyogo, Kagawa, Kagoshima, Kanagawa, Oita, Okayama, Osaka, Saitama, Tochigi[Investigating][Severity: Critical][Breached][Major]
Arcadia: unauthorized access to the SpeeCAN RAIDEN alert service
[Web app exploit][Data leak][Service outage]Leaked 3.1MOrganizations 33

		Incident	Role	Impact level				Methods	Impacts		Status
2026-10-13	2026-10-26	Arcadia: unauthorized access to the SpeeCAN RAIDEN alert service	[Breached]	[Major]	[Critical]	33 Arcadia, Inc., Takehara City, Aichi Prefectural Police, Chiba Prefectural Government, Fukuoka Prefectural Police, Hiroshima City, Hiroshima Prefectural Police, Hyogo Prefectural Police, Kagoshima Prefectural Police, Kanagawa Prefectural Police, Nagoya City, Oita Prefectural Government, Okayama Prefectural Police, Saitama City, Saitama Prefectural Police, Tochigi Prefectural Police, Aomori City, Chiba City, Fukuyama City, Hadano City, Hatsukaichi City, Kagawa Prefectural Police, Kagawa Prefecture, Oita City, Okazaki City, Yokosuka City, Zama City, Ayase City, Ichikai Town, Kanuma City, Minamiboso City, Nasukarasuyama City, Shioya Town	Aichi, Aomori, Chiba, Fukuoka, Hiroshima, Hyogo, Kagawa, Kagoshima, Kanagawa, Oita, Okayama, Osaka, Saitama, Tochigi	[Web app exploit]	[Data leak][Service outage]	3,136,000	[Investigating]