20 C.F.R. § 404.465
(a) Effect of conviction. Where an individual is convicted of any offense (committed after August 1, 1956) under chapter 37 (relating to espionage and censorship), chapter 105 (relating to sabotage), or chapter 115 (relating to treason, sedition, and subversive activities) of title 18 U.S.C., or under section 4, 112, or 113 of the Internal Security Act of 1950, as amended, the court, in addition to all other penalties provided by law, may order that, in determining whether any monthly benefit is payable to the individual for the month in which he is convicted or for any month thereafter, and in determining whether the individual is entitled to hospital insurance benefits under part A of title XVIII for any such month, and in determining the amount of the benefit for that month, the following are not to be taken into account: