People search Shinhan Card data breach timeline because the brand sits on billions of accounts, credentials, and cloud workloads. BreachHistory indexes 1 Shinhan Card-linked incident (1 company-confirmed), with headline counts up to 192K+ in catalog rows. This page maps every attested event through 2026 with internal links to canonical records.
Why Shinhan Card breach history matters
Shinhan Card operates in Finance (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 — internal leak of ~192k merchant owners’ data
Verified breach. Shinhan Card disclosed on 23 December 2025 that personal information tied to about 190,000–192,088 merchant network store owners was leaked in an internal incident—not an external cyberattack. Korea Herald reported most records involved mobile phone numbers, with some also containing names, birth dates, and gender; resident registration and credit-card numbers were not exposed. Ordinary cardholders were not affected. An employee improperly accessed and used merchant data for solicitation. The leak was identified af Exposed categories include Merchant owner mobile numbers; some names, DOB, gender; store business contact fields. BreachHistory cites approximately 192K+ affected records in this row. See the shinhan-card-internal2025 and canonical BreachHistory entry.
Patterns and analysis
- Mixed intrusion and disclosure events — appears across multiple Shinhan Card 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: Bookmark the Shinhan Card company page for new 2026+ disclosures.
Canonical BreachHistory hub
Explore every indexed row: breachhistory.com/shinhan-card · Latest: shinhan-card-internal2025.
Sources: BreachHistory catalog (1 row for Shinhan Card), company and regulator disclosures cited in individual breach records.