Dutch authorities have announced the takedown of a botnet that enslaved millions of infected devices, including computers, tablets, smartphones, and IoT devices, to carry out malicious attacks.

The bot network, per the Dutch Politie and the National Cyber Security Center (NCSC), consisted of at least 17 million infected devices. More than 200 servers located in the Netherlands acted as the platform’s backend infrastructure.

According to a statement issued by the NCSC, police officials seized a subset of these servers from a hosting provider that provided the infrastructure. The provider is said to have subsequently taken the botnet offline following its use for criminal purposes.