Hanyang Securities data leak via DaouOffice groupware
Add to my breach checkMade public · 31 records
What leaked8
Hard to replace
- Driver's licence number
- Bank account number
- Mobile number
- Home or delivery address
- Email address
Permanent
- Resident registration number
- Date of birth
- Full name
- Resident registration number3 records
- Mobile numbercontact number · type not stated
To-dos7 · about 1 h in all
- Block new loans and cards in your nameStops: loans or cards in your name · Limits harm from: scam calls (opens in a new tab)
- Block non-face-to-face account opening in your nameStops: bank account in your name · Limits harm from: scam calls (opens in a new tab)
- Register as an exposed person with the FSSLimits harm from: scam calls, loans or cards in your name, bank account in your name (opens in a new tab)
- Know the scam pattern: calls and texts that cite these leaked detailsLimits harm from: scam calls, phishing messages
- Check your credit records and block status on credit4uHelps you notice: loans or cards in your name (opens in a new tab)
- This weekRemove your address and phone from public profiles and tighten SNS privacyLimits harm from: visits or contact at home
- When convenientReport the lost resident ID card on Gov24Limits harm from: bank account in your name (opens in a new tab)
What happened next4 events
- UndetectedNone on record
- Response 4 eventsNo individual notice on record · Back to latest
- RemedyNone on record
- PenaltyNone on record
- DisputesNone on record
Response: 4 events
Back to latest- Disclosed that 31 personal records leaked
- Reported to the relevant authorities · by 3 November
- Blocked the attacker's access and applied an emergency patch with the software supplier · by 3 November
- Found unauthorised access to the outside groupware product it uses
- Company
- Hanyang Securities
- When it happened
- Company detected it
- Made public
- Notice
- Leak confirmed
- Affected
- 31 records · 15 customer, 2 staff-related and 14 other personal records found as of November 3, 2026; press reports of the company's statement
Sources
- 데일리시큐 press (opens in a new tab)checked November 3, 2026
- 보안뉴스 press, No. 1 (opens in a new tab)checked November 5, 2026
- 보안뉴스 press, No. 2 (opens in a new tab)checked November 5, 2026