Federal prosecutors and defense lawyers will make their closing arguments Wednesday in the trial of a Russian man charged with hacking into U.S. businesses to steal credit card information.

Prosecutors say Roman Seleznev, the son of a Russian lawmaker, made millions of dollars selling the data.

His lawyer, John Henry Browne, argues that the government failed to properly store Seleznev's laptop after he was arrested in the Maldives in 2014 and that evidence on it shouldn't be used against Seleznev.

Browne called only one witness during the trial that started last week: an expert who testified that the laptop was accessed while it was stored at a Secret Service office.

An expert then testified for prosecutors that the only activity on the laptop was its anti-virus system and software maintenance.