Michael M. Santiago/Getty ImagesIn 2020, Donald Trump pardoned cybersecurity executive Chris Wade for crimes that had been sealed.Unsealed documents show he was part of a sophisticated spam email operation busted by an informant.Prosecutors want to keep part of his case sealed — the reason behind that remains a mystery.In August 2005, years before he was an executive at a cybersecurity company, Chris Wade was vacationing at a casino in Las Vegas, planning to meet an associate who was supposed to hand him an envelope containing $2,500 in cash.Wade, who controlled tens of thousands of hacked computers at the time, had agreed to use his network to send emails promoting a stock pump-and-dump scheme.