Obama eo's
https://www.federalregister.gov/documents/2017/01/03/2016-31922/taking-additional-steps-to-address-the-national-emergency-with-respect-to-significant-malicious
https://www.federalregister.gov/documents/2015/04/02/2015-07788/blocking-the-property-of-certain-persons-engaging-in-significant-malicious-cyber-enabled-activities
https://www.federalregister.gov/documents/2010/01/05/E9-31418/classified-national-security-information