On October 7, International Games System Co., Ltd. (IGS) issued a supplemental MOPS filing stating that an abnormal intrusion into its operational IT equipment from an unknown IP address discovered on September 29 resulted in a leak of game operation data, including the names, phone numbers, and email addresses of some players [1]. The company has engaged external forensic investigators, notified the personal data regulator, and alerted affected players via email and SMS [1]. Affected players should remain vigilant against phishing messages impersonating official game titles [1].
Backfill: this event became public on Sep 29, 2026 and we added it on Nov 7, 2026. It is not a new event.
MediumMonitoringBackfillOfficially confirmed
International Games System (IGS) Operational Equipment Breached by Unknown IP; Names, Phone Numbers, and Emails of Some Players Leaked
1 min read
- Disclosed
- Sep 29, 2026
- Published
- Nov 7, 2026
- Last updated
- Nov 6, 2026
- CVSS basis
- Our assessment
- Attack vector
- Impact
- Data type
- Actor type
On this page
30-second summary
What happened
Who is affected
Industries mainly affected: Technology
What to do nowOur advice
Affected players should be wary of phishing messages impersonating official game services [1].
Timeline
Technical details
What Happened
IGS's initial MOPS filing on September 29 stated only that an unknown IP address had abnormally intruded into its operational IT equipment; a supplemental filing on October 7 confirmed that the intrusion caused a leak of game operation data, including the names, phone numbers, and email addresses of certain players [1].
Response
The company stated that it activated emergency response procedures on the day of discovery, commissioned an external cybersecurity team to investigate, notified the competent personal data protection authority in accordance with the law, and notified affected individuals via email and SMS; it assessed no material impact on operations [1].
Remediation
Our addition
- 1Players should guard against phishing mitigate[1]
If you receive phone calls, SMS messages, or emails claiming to be from official game support asking you to operate your account or make payments, verify inside the official game app first.
References
Official / primary1
- [1]
“本公司於115年9月29日發現不明IP異常侵入公司營運資訊設備，造成公司遊戲營運資料外洩，包含部分遊戲之玩家姓名、電話、電子郵件之個資。”
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