> JapanHacked_
[Investigating][Severity: Major][Credential abuse]

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

It found suspicious access logs on June 1. Internal file servers were entered, and personal data of 1,451 partner contacts and staff was likely taken out.

Disclosed

2023-07-21

Organizations involved

1

Leaked or at risk

1.5K

1,451

Downtime

Unknown

What happened

  1. It found unusual access logs on the terminal server that subsidiaries use as a relay into its internal servers, and began an investigation. [1] [4]

  2. It cut the network thought to be the entry route and shut down the terminal server. No unauthorized access has been seen since. [2] [3]

  3. An outside expert investigation found traces of unauthorized access from the terminal server to internal file servers. [3]

  4. It announced the case. A malicious third party had impersonated a subsidiary employee and logged in to the internal servers through the subsidiary network. The accessed files were likely taken out. [1] [2] [4]

Impact

The data that may have leaked is for 76 business partner contacts (name, phone, email, affiliation, title and others) and 1,375 group employees, including former ones, and related people (name, phone, email, employee number and others). Subscriber data for services such as "SKY PerfecTV!" is not included, and no secondary damage has been reported. [1] [2] [4]

Timeline

  1. Detected 2023-06-01
  2. Disclosed 2023-07-21
  3. 50 days

Organizations involved

Open in organization search

Sources

  1. [1][News]スカパーJSATに不正アクセス 従業員になりすましてサーバに侵入かITmedia NEWS · 2023-07-21
  2. [2][News]スカパーJSATに不正アクセス 取引先などの情報漏洩Nikkei · 2023-07-21
  3. [3][News]スカパーJSAT、サーバーに不正アクセス--従業員の個人情報などが漏洩かCNET Japan · 2023-07-21
  4. [4][News]スカパーJSATのサーバに不正アクセスの痕跡、子会社従業員になりすまし侵入ScanNetSecurity · 2023-07-28 08:05