Company

SKY Perfect JSAT Corporation

SKY Perfect JSAT Corporation (Minato, Tokyo; Information and communications) appears in 3 related cybersecurity incidents. The latest was disclosed on 2026-10-07.

Profile

Industry/type: Information and communications
Location: Tokyo, Minato
Website: https://www.skyperfectjsat.space/

Public figures

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Metric	Value	Scope	As of	Source
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Incident history

Disclosed 2026-10-07Updated 2026-10-27 19:58Aichi, Fukuoka, Hiroshima, Ibaraki, Osaka, Tokyo[Ongoing][Severity: Critical][Through a supplier][Moderate]
IDC Frontier: ransomware attack on IDCF Cloud
[Ransomware][Intrusion][Web app exploit][Service outage][Data leak]Leaked 4MOrganizations 495
Disclosed 2025-12-24Updated 2026-01-16 08:05Tokyo[Investigating][Severity: Moderate][Breached][Moderate]
SKY Perfect JSAT: unauthorized access to the web server of the browser viewing site of its program distribution service
[Intrusion]Organizations 1
Disclosed 2023-07-21Updated 2023-07-28 08:05Tokyo[Investigating][Severity: Major][Breached][Major]
Sky Perfect JSAT: an attacker impersonating a subsidiary employee logged in to internal servers, and personal data of 1,451 partner contacts and staff may have leaked
[Credential abuse][Data leak]Leaked 1.5KOrganizations 1

		Incident	Role	Impact level				Methods	Impacts		Status
2026-10-07	2026-10-27 19:58	IDC Frontier: ransomware attack on IDCF Cloud	[Through a supplier]	[Moderate]	[Critical]	495 IDC Frontier Inc., Central Japan Railway Company, East Japan Railway Company, Ibaraki Prefectural Government, Ibaraki Prefectural Police, Kyushu Railway Company, Izumi Co., Ltd., Nissui Corporation, Daihatsu Motor Co., Ltd., Mouse Computer Co., Ltd., PEACH JOHN Co., Ltd., SKY Perfect JSAT Corporation, Soliton Systems K.K.	Aichi, Fukuoka, Hiroshima, Ibaraki, Osaka, Tokyo	[Ransomware][Intrusion][Web app exploit]	[Service outage][Data leak]	4,030,000	[Ongoing]
2025-12-24	2026-01-16 08:05	SKY Perfect JSAT: unauthorized access to the web server of the browser viewing site of its program distribution service	[Breached]	[Moderate]	[Moderate]	1 SKY Perfect JSAT Corporation	Tokyo	[Intrusion]		Unknown	[Investigating]
2023-07-21	2023-07-28 08:05	Sky Perfect JSAT: an attacker impersonating a subsidiary employee logged in to internal servers, and personal data of 1,451 partner contacts and staff may have leaked	[Breached]	[Major]	[Major]	1 SKY Perfect JSAT Corporation	Tokyo	[Credential abuse]	[Data leak]	1,451	[Investigating]