Boannews reports that ransomware hit some servers managed by Hanil Networks, the IT infrastructure subsidiary of UBase Group, on November 2, 2026, and the company says it blocked the attack immediately and found no sign that important data, including personal data, leaked [1]. The report says Hanil Networks restored its databases and SK Shieldus confirmed normal operations, and while some claimed a large card company was affected, that company says it found no compromise, as financial regulators reportedly ordered all financial firms to check for damage [1]. Financial firms that use Hanil Networks should complete the regulator-ordered self-inspection and submit results to confirm their systems were not affected [1].
Ransomware hits servers at Korean IT provider Hanil Networks; regulators tell financial clients to self-check
1 min read
- Disclosed
- Nov 10, 2026
- Occurred
- Nov 2, 2026
- Published
- Nov 12, 2026
- Last updated
- Nov 12, 2026
- CVSS basis
- Our assessment
- Attack vector
- Impact
- Actor type
- Motivation
On this page
30-second summary
What happened
Who is affected
Industries mainly affected: Finance, Technology
What to do nowOur advice
Financial firms that use Hanil Networks should complete the regulator-ordered self-inspection and submit results to confirm their systems were not affected [1]
Timeline
Technical details
Remediation
Vendor guidance
- 1Complete self-inspection verify[1]
Check for impact and submit results as instructed by financial regulators.
References
Media1
- [1]보안뉴스2026-11-10Accessed 2026-11-12Snapshot 2026-11-12 sha256 c0f6e633d169
“10일 유베이스 그룹에 따르면 이달 2일 한일네트웍스가 관리하는 일부 서버에 랜섬웨어 공격이 발생했다.”
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