Ulose Ransomware

Ulose is a ransomware threat group that has disclosed 5 victims in publicly accessible leak site data, representing 0% of all ransomware attacks tracked in this database. The earliest victim disclosure attributed to Ulose in our dataset dates to June 2026.

Geographically, Ulose has targeted organisations in 1 countries. The most frequently targeted nation is South Korea with 5 victim organisations.

Industry-wise, Ulose shows a concentration in the Financial Services, Healthcare, Manufacturing sectors. These industries are frequently targeted because they manage sensitive data, critical operations, or have lower tolerance for operational downtime — conditions that increase ransom payment likelihood.

Like most modern ransomware operations, Ulose likely employs a double extortion model: encrypting victim files while simultaneously exfiltrating data, creating dual pressure to pay the ransom. Victim organisations that refuse payment face having their data published on the group's dark web leak site.

Note: This profile is generated from public leak site disclosures aggregated via the ransomware.live API. Data is updated automatically. The table below lists the 5 most recent of the 5 disclosures we hold for this group; use the link beneath it to page through all of them.