> JapanHacked_Cybersecurity incidents in Japan

Company

NEC Corporation

NEC Corporation (Minato, Tokyo; Manufacturing) appears in 2 related cybersecurity incidents. The latest was disclosed on 2026-10-05.

Profile

Industry/type: Manufacturing
Location: Tokyo, Minato
Also known as: NEC
Listing: TSE Prime 6701
Website: https://jpn.nec.com/

Public figures

Employees21,934Non-consolidated2026-03-31
METI: Gビズインフォ
Revenue¥2.1TNon-consolidated2026-03-31
METI: Gビズインフォ
Capital¥427.8BNon-consolidated2026-03-31
METI: Gビズインフォ

Metric	Value		As of	Source
Employees	21,934	Non-consolidated	2026-03-31	METI: Gビズインフォ
Revenue	¥2.1T	Non-consolidated	2026-03-31	METI: Gビズインフォ
Capital	¥427.8B	Non-consolidated	2026-03-31	METI: Gビズインフォ

Incident history

Disclosed 2026-10-05Updated 2026-10-23Osaka, Tokyo[Ongoing][Severity: Critical][Breached][Major]
Osaka Metropolitan University: attack on an NEC contractor disrupts systems and exposes information
[Ransomware][Credential abuse][Service outage][Data leak]Leaked 130KOrganizations 3
Disclosed 2020-01-31Updated 2020-01-31 23:21Tokyo[Resolved][Severity: Moderate][Breached][Moderate]
NEC: unauthorized access to a server of its defense division
[Intrusion][Malware]Organizations 1

		Incident	Role	Impact level				Methods	Impacts		Status
2026-10-05	2026-10-23	Osaka Metropolitan University: attack on an NEC contractor disrupts systems and exposes information	[Breached]	[Major]	[Critical]	3 Osaka Metropolitan University, NEC Corporation, Osaka University	Osaka, Tokyo	[Ransomware][Credential abuse]	[Service outage][Data leak]	130,000	[Ongoing]
2020-01-31	2020-01-31 23:21	NEC: unauthorized access to a server of its defense division	[Breached]	[Moderate]	[Moderate]	1 NEC Corporation	Tokyo	[Intrusion][Malware]		Unknown	[Resolved]