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Denny's app

Denny's app (run by Denny's Japan Co., Ltd.) was hit in 1 recorded cybersecurity incident. The latest was disclosed on 2026-11-03.

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https://www.dennys.jp/app/download/

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		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]