Company

NTT WEST, Inc.

NTT WEST, Inc. (Miyakojima-ku, Osaka, Osaka; Information and communications) appears in 2 related cybersecurity incidents. The latest was disclosed on 2023-10-17.

Profile

Industry/type

Information and communications

Location

Osaka, Osaka, Miyakojima-ku

Former names

Nippon Telegraph and Telephone West Corporationuntil 2025-07-01

Public figures

Employees13,209Non-consolidated2025-07-07
METI: Gビズインフォ

Metric	Value	Scope	As of	Source
Employees	13,209	Non-consolidated	2025-07-07	METI: Gビズインフォ

Incident history

Disclosed 2023-10-17Updated 2024-03-07 08:05Osaka[Investigating][Severity: Critical][Through a supplier][Critical]
NTT Marketing Act ProCX: a former dispatched worker on its call-center system took about 9 million customer records
[Insider][Data leak]Leaked 9.3MOrganizations 2
Disclosed 2022-03-07Updated 2022-03-08 11:46Aichi, Osaka[Resolved][Severity: Major][Breached][Major]
NTT West: a PC used for work commissioned by the Aichi Prefectural University Corporation was infected with Emotet and email addresses leaked
[Malware][Data leak][Fraud]Organizations 2

		Incident	Role	Impact level				Methods	Impacts		Status
2023-10-17	2024-03-07 08:05	NTT Marketing Act ProCX: a former dispatched worker on its call-center system took about 9 million customer records	[Through a supplier]	[Critical]	[Critical]	2 NTT WEST, Inc., NTT DATA Marketing Act Corp.	Osaka	[Insider]	[Data leak]	9,280,000	[Investigating]
2022-03-07	2022-03-08 11:46	NTT West: a PC used for work commissioned by the Aichi Prefectural University Corporation was infected with Emotet and email addresses leaked	[Breached]	[Major]	[Major]	2 NTT WEST, Inc., Aichi Prefectural University Corporation	Aichi, Osaka	[Malware]	[Data leak][Fraud]	Unknown	[Resolved]