The U.S. Department of Homeland Security (DHS) issued a binding operational directive on Wednesday ordering government departments and agencies to stop using products from Kaspersky Lab due to concerns regarding the company’s ties to Russian intelligence.

The DHS told agencies that they have 30 days to identify the use or presence of products supplied directly or indirectly by Kaspersky. Once such products have been identified, agencies have 30 days to develop a plan for their removal from IT systems, and another 30 days to start implementing the plan.