HanDok

HanDok was compromised in a ransomware attack attributed to ulose in June 2026. The organization, operating in the Healthcare sector in South Korea, was added to the group's data leak site as part of an extortion campaign.

ulose operates as a financially motivated ransomware-as-a-service (RaaS) operation, exfiltrating sensitive data and threatening public disclosure to pressure victims into paying ransom demands.

We have all customer`s data of HanDok country: South Korea status: public