Citation
The White House, Executive Order 13694: Blocking the Property of Certain Persons Engaging in Significant Malicious Cyber-Enabled Activities (Apr. 1, 2015) (full-text).
Overview
This Executive Order permits the U.S. Government to block the property and interest in property of any person or entity it finds to be responsible for or complicit in, cyber-enabled activities originating from, or directed by persons located, outside the United States that are reasonably likely to result in a significant threat to the national security, foreign policy, or economic health or financial stability of the United States.
The Treasury Department's Office of Foreign Assets Control (OFAC) will maintain the list of Specially Designated Nationals (SDNs) as the foreign cyber attackers become known.