Insomnia Ransomware

Insomnia is a ransomware threat group that has disclosed 52 victims in publicly accessible leak site data, representing 0.2% of all ransomware attacks tracked in this database. The earliest victim disclosure attributed to Insomnia in our dataset dates to February 2026.

Geographically, Insomnia has targeted organisations in 4 countries. The most frequently targeted nation is United States with 49 victim organisations. Other heavily targeted nations include Singapore, Brazil, PA.

Industry-wise, Insomnia shows a concentration in the Healthcare, Business Services, Technology 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, Insomnia 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 52 most recent of the 52 disclosures we hold for this group; use the link beneath it to page through all of them.