People search Netmarble data breach timeline because the brand sits on billions of accounts, credentials, and cloud workloads. BreachHistory indexes 1 Netmarble-linked incident (1 company-confirmed), with headline counts up to 6.1M+ in catalog rows. This page maps every attested event through 2026 with internal links to canonical records.
Why Netmarble breach history matters
Netmarble operates in Technology (South Korea). Across indexed rows, recurring themes include mixed intrusion and disclosure events. Understanding the chronological pattern helps security teams, customers, and regulators separate confirmed disclosures from forum marketing.
Full timeline through 2026
2025 — 6.11M PC portal members (names, DOB, encrypted passwords)
Verified breach. Netmarble confirmed on 27 November 2025 that a 22 November intrusion into PC game portal systems exposed personal data for 6,110,000 members (including dormant accounts): names, birthdates, and encrypted passwords. The company said resident registration numbers and other unique identifiers were not compromised. Separately, it reported leakage of over 31 million IDs with encrypted passwords where names/DOBs had already been deleted (not independently identifiable), plus ~66,000 pre-2015 PC-cafe franchisee records an Exposed categories include Names, birthdates, encrypted passwords; franchisee and employee subsets. BreachHistory cites approximately 6.1M+ affected records in this row. See the netmarble-pc-portal2025 and canonical BreachHistory entry.
Patterns and analysis
- Mixed intrusion and disclosure events — appears across multiple Netmarble catalog entries; prioritize controls that address this class of failure.
- Record-count hygiene — BreachHistory indexes actor-cited figures separately from company-confirmed totals; read each row's technicalWriteup before treating counts as fact.
- 2026 monitoring — New disclosures roll into this timeline as they are verified or labeled unverified per catalog policy.
What to do if you may be affected
- Step 1: Enable phishing-resistant MFA on every account tied to this brand.
- Step 2: Use unique passwords and a password manager—breach rows often involve credential reuse.
- Step 3: Monitor official company breach notices and regulator filings, not dark-web downloads.
- Step 4: Review OAuth app permissions and revoke unused third-party integrations.
- Step 5: Bookmark the Netmarble company page for new 2026+ disclosures.
Canonical BreachHistory hub
Explore every indexed row: breachhistory.com/netmarble · Latest: netmarble-pc-portal2025.
Sources: BreachHistory catalog (1 row for Netmarble), company and regulator disclosures cited in individual breach records.