> Whoever, knowing that an offense against the United States has been committed, receives, relieves, comforts or assists the offender in order to hinder or prevent his apprehension, trial or punishment, is an accessory after the fact.

It’s not obvious at all that selling e.g. the leaked Linkedin database would be illegal in any way. You wouldn’t retroactively become an accessory to the original crime.

Of course, that stopped mattering the moment he started trafficking in stolen payment card information…