Company

Denny's Japan Co., Ltd.

Denny's Japan Co., Ltd. (Chiyoda, Tokyo; Accommodation, food and drink) appears in 1 related cybersecurity incident. The latest was disclosed on 2026-11-03.

Profile

Industry/type

Accommodation, food and drink

Location

Tokyo, Chiyoda

Also known as

Denny's

Services

Denny's app

Website

https://www.dennys.jp/

Public figures

–

Metric	Value	Scope	As of	Source
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Incident history

Disclosed 2026-11-03Updated 2026-11-04 13:24Tokyo[Investigating][Severity: Major][Breached][Major]
Denny's: forged credentials in its app migration may have exposed members' email addresses and birth dates
[Credential abuse][Data leak]Organizations 1

		Incident	Role	Impact level				Methods	Impacts		Status
2026-11-03	2026-11-04 13:24	Denny's: forged credentials in its app migration may have exposed members' email addresses and birth dates	[Breached]	[Major]	[Major]	1 Denny's Japan Co., Ltd.	Tokyo	[Credential abuse]	[Data leak]	Unknown	[Investigating]