They kept personnel 'read in' from the time Clinton was President. Companies like Booz Allen Hamilton and the Intelligence Services helped them wire up the White House for spying. It is easy to maintain discrete passive monitoring nodes on highly complex, segmented networks, if they were never properly segmented to begin with. (eg false documentation saying they are segmented according to 'impartial analysts' such as BAH or more recently groups like FusionGPS and Crowdstrike). Wikileaks knows which foreign Governments helped her, and here at Voat we are finally able to talk about which foreign Governments helped themselves. E.G China. The access China had wasn't just Grandmas Basement server - it was also to the much more sensitive data that Clintonites were scraping from their other inputs and storing for themselves.