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Services in Japan affected by cyberattacks and data leaks. Tick the services you use to see the incidents that hit them in one list.

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Services involved in this incident2026-11-03Mitsui Sumitomo and Aioi Nissay Dowa: unauthorized access detected, policyholder sites taken offlineOpen the incident

15 results

	Role				For
1DAY Insurance	[Breached]	[Moderate]	Mitsui Sumitomo Insurance Company, Limited	Banking and investing	People	1	2026-11-03
Aioi Nissay Dowa business web service	[Breached]	[Moderate]	Aioi Nissay Dowa Insurance Co., Ltd.	Banking and investing	Businesses	1	2026-11-03
Aioi Nissay Dowa e-G1Aioi Nissay Dowa policyholder page	[Breached]	[Moderate]	Aioi Nissay Dowa Insurance Co., Ltd.	Banking and investing	People	1	2026-11-03
Aioi Nissay Dowa My AgentAioi Nissay Dowa policyholder page	[Breached]	[Moderate]	Aioi Nissay Dowa Insurance Co., Ltd.	Banking and investing	People	1	2026-11-03
Aioi Nissay Dowa policyholder page	[Breached]	[Moderate]	Aioi Nissay Dowa Insurance Co., Ltd.	Banking and investing	People	1	2026-11-03
Disaster prevention alertMitsui Sumitomo Insurance policyholder page	[Breached]	[Moderate]	Mitsui Sumitomo Insurance Company, Limited	Banking and investing	People	1	2026-11-03
e-Travel overseas travel insurance	[Breached]	[Moderate]	Aioi Nissay Dowa Insurance Co., Ltd.	Banking and investing	People	1	2026-11-03
Mitsui Sumitomo Insurance business web service	[Breached]	[Moderate]	Mitsui Sumitomo Insurance Company, Limited	Banking and investing	Businesses	1	2026-11-03
Mitsui Sumitomo Insurance e-G1Mitsui Sumitomo Insurance policyholder page	[Breached]	[Moderate]	Mitsui Sumitomo Insurance Company, Limited	Banking and investing	People	1	2026-11-03
Mitsui Sumitomo Insurance My AgentMitsui Sumitomo Insurance policyholder page	[Breached]	[Moderate]	Mitsui Sumitomo Insurance Company, Limited	Banking and investing	People	1	2026-11-03
Mitsui Sumitomo Insurance policyholder page	[Breached]	[Moderate]	Mitsui Sumitomo Insurance Company, Limited	Banking and investing	People	1	2026-11-03
Net de Hoken at Cycle	[Breached]	[Moderate]	Mitsui Sumitomo Insurance Company, Limited	Banking and investing	People	1	2026-11-03
Net de Hoken at Golf	[Breached]	[Moderate]	Mitsui Sumitomo Insurance Company, Limited	Banking and investing	People	1	2026-11-03
Net de Hoken at Travel	[Breached]	[Moderate]	Mitsui Sumitomo Insurance Company, Limited	Banking and investing	People	1	2026-11-03
One Day Supporter	[Breached]	[Moderate]	Aioi Nissay Dowa Insurance Co., Ltd.	Banking and investing	People	1	2026-11-03