Malgeunsoft e-learning vendor breach affecting 20+ organisations
Add to my breach checkMade public · 2,370,000 records
What leaked11
Replaceable
- Password
Hard to replace
- Mobile number
- Home or delivery address
- Email address
- Employer
- Other profile data
- Username
Permanent
- Connecting information
- Date of birth
- Full name
- Gender
- Employerorganisation and, at some sites, job title
- Other profile dataDI, guardian information, employee numbers, site-specific fields; at some client sites lawyer registration numbers, actuary registration numbers and doctor licence numbers · SBS October 6, 2026
To-dos7 · about 2 h in all
- Change the leaked password everywhere you reused itStops: account takeover
- Know the scam pattern: calls and texts that cite these leaked detailsLimits harm from: scam calls, phishing messages
- Register as an exposed person with the FSSLimits harm from: scam calls (opens in a new tab)
- Block new loans and cards in your nameLimits harm from: scam calls (opens in a new tab)
- Turn on two-step sign-in for email and bankingLimits harm from: account takeover
- Do nowUse an authenticator app or passkey instead of SMS codesLimits harm from: account takeover
- This weekRemove your address and phone from public profiles and tighten SNS privacyLimits harm from: visits or contact at home
What happened next18 events
- Undetected 2 events3 days · show events
- Response 14 eventsNotice in 2 days · show events
- RemedyNone on record
- Penalty 2 eventsUnder investigation · Back to latest
- DisputesNone on record
Penalty: 2 events
Back to latest- KISA breach investigation carried out
- PIPC opened an investigation, classed internally as a major case; the company reported about 2.37 million records
- Company
- Malgeunsoft
- When it happened
- –
- Company detected it
- Made public
- Notice
- Leak confirmed
- Affected
- 2,370,000 records · approx.; company report to PIPC, being verified
How the facts developed
- First press reports of client notices (국방부, 국민권익위, 한국교육시설안전원, 기아 노조, 대한상사중재원); the company reported to PIPC on 09-22, 09-24 and 09-29, and PIPC opened an investigation on 09-30
Sources
- SBS Biz press, (opens in a new tab)checked October 15, 2026
- SBS Biz press, (opens in a new tab)checked October 15, 2026
- 맑은소프트 company notice, (opens in a new tab)checked October 17, 2026
- 맑은소프트 company notice (opens in a new tab)checked October 17, 2026