Government

NHK (Japan Broadcasting Corporation)

NHK (Japan Broadcasting Corporation) (Shibuya, Tokyo; Information and communications) appears in 2 related cybersecurity incidents. The latest was disclosed on 2026-03-18.

Profile

Industry/type: Information and communications
Location: Tokyo, Shibuya
Also known as: NHK
Website: https://www.nhk.or.jp/

Public figures

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Metric	Value	Scope	As of	Source
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Incident history

Disclosed 2026-03-18Updated 2026-03-23 08:05Tokyo[Contained][Severity: Major][Breached][Major]
NHK: a notice mail was sent to every registrant of its information system by mistake, exposing 32,940 email addresses to other recipients
[Misdelivery][Data leak]Leaked 32.9KOrganizations 1
Disclosed 2023-09-26Updated 2023-09-29 08:05Tokyo[Contained][Severity: Major][Breached][Major]
NHK: unauthorized access to business servers at its Broadcasting Center may have leaked account data of 23,435 staff and others
[Intrusion][Data leak]Leaked 23.4KOrganizations 1

		Incident	Role	Impact level				Methods	Impacts		Status
2026-03-18	2026-03-23 08:05	NHK: a notice mail was sent to every registrant of its information system by mistake, exposing 32,940 email addresses to other recipients	[Breached]	[Major]	[Major]	1 NHK (Japan Broadcasting Corporation)	Tokyo	[Misdelivery]	[Data leak]	32,940	[Contained]
2023-09-26	2023-09-29 08:05	NHK: unauthorized access to business servers at its Broadcasting Center may have leaked account data of 23,435 staff and others	[Breached]	[Major]	[Major]	1 NHK (Japan Broadcasting Corporation)	Tokyo	[Intrusion]	[Data leak]	23,435	[Contained]