Who is the shadow broker

The Shadow Broker is a "necessary evil of galactic politics" who buys and sells information to the highest bidder. It isn't a direct threat to anyone, but is a resource people use. The Broker appears to be a genius at handling information - all the secrets that are bought and sold seem to even out, and no one ever gets the upper hand, meaning the Broker always stays in business. The Shadow Broker's identity and gender is unknown because the Broker always works through agents.