A New Data Theft Gang for the Health Sector to Lose Sleep Over

Newcomer 'Insomnia' Appears to Favor US Healthcare-Related Entities Marianne Kolbasuk McGee (HealthInfoSec) • February 11, 2026

A new cybercriminal gang appears to be targeting the healthcare industry, a sector with a reputation for paying extortionists rather than risk harm to patients.

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Since first surfacing on the darkweb in recent weeks, the Insomnia data theft group has chalked up 18 alleged victims on its data leak site. More than half have ties to healthcare.

Among the victims listed on Insomnia's data leak site as of Wednesday, most are healthcare providers, or companies that are involved with work concerning healthcare issues, including two law firms that handle medical malpractice cases and one manufacturer of surgical and medical gear.

Overall, all of the victims - except for two in Brazil and Singapore - are based in the United States. Most of ...