arcane

Arcane first emerged in mid-2021 under the UNC2190 cluster and later rebranded as Sabbath, continuing its operations against critical infrastructure like hospitals, schools, and educational entities. It follows a double-extortion model—encrypting data (using ROLLCOAST/Eruption malware) while also exfiltrating sensitive information and threatening to leak it. Victims have included institutions in the U.S. and Canada across sectors such as healthcare, education, and natural resources. Initial in