BERLIN: Police have carried out raids against two members of a ransomware group known as “Black Basta” in Ukraine, and issued an arrest warrant for its Russian head, German prosecutors said Thursday.

The group is accused of using malware to encrypt systems and then demanding money to restore them.

Between March 2022 and February 2025, its members extorted hundreds of millions of euros from around 600 companies and public institutions around the world, the prosecutors said in a statement.

The victims were mainly “companies in Western industrialized nations” but also included hospitals and other public institutions.

As part of a coordinated operation between Germany, the Netherlands, Switzerland, Ukraine and Britain, police searched the homes of two Ukrainian suspects and seized evidence, the prosecutors said.