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Ransomware victim Manufacturing

Dongkuk Steel (steel manufacturing)

Listed by N0n on · organisation based in South Korea

Disclosed
Oct 12, 2026
Leak-site listing date
Threat group
N0n
96 victims listed
Country
South Korea
#22 most targeted
Sector
Manufacturing

ThreatAI analysis

Compiled from this incident record and the threat intelligence profile for N0n. Figures and technique mappings are quoted from the source data, not inferred.

About the N0n group

N0n has listed 9 victims since September 2026.

Incident analysis

Dongkuk Steel (steel manufacturing) was listed by N0n ransomware, a group with 96 victims recorded in this database. The listing appeared on the group's leak site on October 12, 2026.

Dongkuk Steel (steel manufacturing) is based in South Korea and operates in the Manufacturing sector. South Korea ranks #22 worldwide for ransomware disclosures, with 144 victims in this database.

Sector context. Manufacturing companies are frequently targeted because production downtime directly translates to financial loss. Ransomware operators exploit this time-sensitivity to demand higher ransoms and faster payment.

N0n typically follows a double extortion model: data is exfiltrated from the victim's systems before files are encrypted, so the victim faces two demands at once — pay to restore access, and pay to keep stolen data unpublished. The leak site, where this listing appeared, is the lever for the second demand.

Source. Public leak-site disclosures aggregated via the ransomware.live API. The disclosure date is when the listing was published, which can differ from the date of compromise. This site does not publish or link to stolen data. Last updated .

Frequently asked questions

Was Dongkuk Steel (steel manufacturing) attacked by ransomware?

Yes. Dongkuk Steel (steel manufacturing) was listed as a victim of the N0n ransomware group on October 12, 2026. The organisation is based in South Korea and operates in the Manufacturing sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked Dongkuk Steel (steel manufacturing)?

Dongkuk Steel (steel manufacturing) was attacked by N0n ransomware. N0n is one of the most active ransomware groups, having claimed 96 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the Dongkuk Steel (steel manufacturing) ransomware attack occur?

The ransomware attack on Dongkuk Steel (steel manufacturing) was disclosed on October 12, 2026. This date reflects when the victim was published on the threat group's leak site, which may differ from the actual date of initial compromise.

What data was stolen in the Dongkuk Steel (steel manufacturing) ransomware attack?

The specific data stolen from Dongkuk Steel (steel manufacturing) has not been independently verified by this platform. Ransomware groups typically exfiltrate data before encrypting systems and use the threat of publication to pressure victims. As a Manufacturing organisation, Dongkuk Steel (steel manufacturing) likely held sensitive business data, client information, and operational records.

How can organisations protect against N0n attacks?

To defend against N0n and similar threat actors, organisations should: maintain regular offline backups tested for restoration; implement network segmentation to limit lateral movement; deploy multi-factor authentication on all remote access; use endpoint detection and response (EDR) tools; conduct regular phishing and security awareness training; and monitor threat intelligence feeds for indicators of compromise (IOCs) associated with active groups.