I guess Brennan and Clapper didn't get the memo about personal email being hacked. He got hacked by teens.
https://gizmodo.com/cyber-terrorist-teen-who-hacked-cia-director-john-brenn-1825443902
https://www.wired.com/2015/10/hacker-who-broke-into-cia-director-john-brennan-email-tells-how-he-did-it/
https://motherboard.vice.com/en_us/article/pax87v/kane-gamble-crackas-with-attitude-cwa-sentence-prison
Knowing Hillary, the interviewing officer is dead.