Creates a new, much harsher criminal penalty for computer crimes that target critical infrastructure and requires the President to impose economic and immigration-related sanctions on foreign persons who knowingly access or try to access U.S. critical infrastructure to harm national security, defense, or the safety of U.S. citizens or lawful permanent residents. The bill ties “critical infrastructure” to the existing statutory definition and gives the President authority to block assets, make persons inadmissible, set exceptions, and issue implementing regulations with deadlines and a waiver process.