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Netmarble

Netmarble Vendor Cyber Rating & Cyber Score

netmarble.com
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ISO 27001
SOC 2 Type 1
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Netmarble Corp. strives to entertain audiences of all ages, and around the world, by providing great mobile gaming experience. Established in Korea in 2000, Netmarble is the fastest-growing mobile game company in Asia and consistently ranks as a top mobile developer and publisher worldwide. With more than 3,000 employees, Netmarble has been producing and servicing some of the most successful mobile games, including MARVEL Future Fight, Seven Knights, Raven (Evilbane in U.S.) and Everybody’s Marble. The largest shareholder to SGN, a leading casual game developer, Netmarble has a strategic partnership with CJ E&M Corporation, Asia’s largest entertainment company, Tencent Holdings, Asia’s largest internet company, and NCsoft, a prominent MMO


Netmarble A.I CyberSecurity Scoring

Incident Details
Netmarble
Company Information
Website:http://company.netmarble.com
Employees number:431
Number of followers:8,272
NAICS:
Industry Type:Information Technology & Services
Homepage:netmarble.com
Cyber Premium EstimationGet Supply Chain
Netmarble Risk Score (AI oriented)
Between 700 and 749
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NetmarbleInformation Technology & Services
Updated:
01/04/2026
709/1000
Moderate
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Netmarble Global Score (TPRM)
xxxx
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NetmarbleInformation Technology & Services
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Findings

Netmarble
NetmarbleModerate
Current Score
709Ba (MODERATE)
01000
1 incidents
0 avg impact
Incident timeline with MITRE ATT&CK tactics, techniques, and mitigations.
AUGUST 2026
713Before Incident
JULY 2026
713Before Incident
JUNE 2026
712Before Incident
MAY 2026
711Before Incident
APRIL 2026
710Before Incident
MARCH 2026
709Before Incident
FEBRUARY 2026
708Before Incident
JANUARY 2026
707Before Incident
DECEMBER 2025
706Before Incident
NOVEMBER 2025
705Before Incident
OCTOBER 2025
704Before Incident
SEPTEMBER 2025
703Before Incident
JUNE 2025
757Before Incident
Breach
16 Jun 2025 • Netmarble
Netmarble

Netmarble Data Breach Affecting Legacy PC Gaming Platform

700After Incident
CRITICAL-57
NET2040020112725
Netmarble, a leading South Korean game publisher, disclosed a data breach on its legacy PC gaming platform, exposing customer names, birth dates, and encrypted passwords. The incident drew sharp criticism from lawmakers, particularly Ruling Party lawmaker Choi Min-hee, for violating South Korea’s network law, which mandates reporting cybersecurity incidents within 24 hours. Netmarble delayed disclosure by three days, risking fines up to 30 million won (≈$22,500). The breach aligns with a rising trend of hacker-targeted companies in 2025, raising concerns over data privacy compliance and regulatory accountability. While the exposed data was limited to personal (non-financial) information, the delay exacerbated reputational damage and potential legal repercussions. The attack did not involve ransomware or financial theft but highlighted vulnerabilities in legacy systems, reinforcing the need for stricter incident response protocols in the gaming industry.
INCIDENT DETAILS -
TYPE
Data Breach
IMPACT
Customer namesBirth datesEncrypted passwordsLegacy PC gaming platformBrand Reputation Impact: Criticism from lawmakers and potential regulatory finesLegal Liabilities: Potential violation of South Korea's network law (fines up to 30 million won)Identity Theft Risk: Possible (due to exposed PII)
DATA BREACH
Personal Information (PII)Sensitivity Of Data: Moderate to High (names, birth dates, encrypted passwords)Data Exfiltration: Likely (data exposed)Data Encryption: Passwords were encryptedNamesBirth dates
REFERENCES
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