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Hanjin Information Systems ITSM site user data leak

Add to my breach check

Made public

What leaked2

Hard to replace

  • Email address

Permanent

  • Full name

To-dos1 · about 5 min in all

  1. Know the scam pattern: calls and texts that cite these leaked detailsabout 5 minfreeLimits harm from: phishing messages

What happened next7 events

  1. Undetected 1 eventNone on record · show events
  2. Response 6 eventsNo individual notice on record · show events
  3. RemedyNone on record
  4. PenaltyNone on record
  5. DisputesNone on record
  1. Apologised in the notice
  2. Website notice: names and emails of 980 ITSM users leaked
  3. Reported to KISA and PIPC · by 23 October
  4. Reset the passwords of internal and external accounts · by 23 October
  5. Blocked the outside access path used in the attack and identified the affected server · by 23 October
  6. First learned of the leak from its ITSM site at 05:52 KST
  7. Group n0n claimed the attack on a dark web site and threatened to publish staff and partner account data
Company
Hanjin Information Systems & Telecommunication
Company detected it
Made public
Notice
Leak confirmed
Affected
980 people, users of its IT service management (ITSM) site, as of 13:00 KST on October 22, 2026 · press reports of the company notice

Sources