Company

Yahoo Japan Corporation

Yahoo Japan Corporation (Chiyoda, Tokyo; Information and communications) appears in 1 related cybersecurity incident. The latest was disclosed on 2020-08-06.

Profile

Industry/type

Information and communications

Location

Tokyo, Chiyoda

Former names

Kioicho Split Preparation Corporationuntil 2019-10-01

Former parents

LY Corporation2019-10-01 to 2023-10-01

Registry closed

2023-10-02 Dissolved by merger

Succeeded by

LY Corporation

Public figures

–

Metric	Value	Scope	As of	Source
–

Incident history

Disclosed 2020-08-06Updated 2020-08-11 08:05Tokyo[Resolved][Severity: Critical][Breached][Critical]
Yahoo Japan: a bug in Yahoo! JAPAN ID wrote users' profile edits into up to 387,460 other people's IDs
[Misconfiguration][Data leak]Leaked 387.5KOrganizations 1

		Incident	Role	Impact level				Methods	Impacts		Status
2020-08-06	2020-08-11 08:05	Yahoo Japan: a bug in Yahoo! JAPAN ID wrote users' profile edits into up to 387,460 other people's IDs	[Breached]	[Critical]	[Critical]	1 Yahoo Japan Corporation	Tokyo	[Misconfiguration]	[Data leak]	387,460	[Resolved]