Analysis of information sources in references of the Wikipedia article "Igor Korobov" in Simple English language version.
Mr. Obama used that order to immediately impose sanctions on four Russian intelligence officials: Igor Valentinovich Korobov, the current chief of a military intelligence agency, the G.R.U., and three deputies: Sergey Aleksandrovich Gizunov, the deputy chief of the G.R.U.; Igor Olegovich Kostyukov, a first deputy chief, and Vladimir Stepanovich Alekseyev, also a first deputy chief of the G.R.U.
KOROBOV, Igor (a.k.a. KOROBOV, Igor Valentinovich); DOB 03 Aug 1956; nationality Russia; Passport 100119726 (Russia); alt. Passport 100115101 (Russia); Chief of GRU (individual) [CYBER2] (Linked To: MAIN INTELLIGENCE DIRECTORATE).
KOROBOV, Igor (a.k.a. KOROBOV, Igor Valentinovich); DOB 03 Aug 1956; nationality Russia; Passport 100119726 (Russia); alt. Passport 100115101 (Russia); Chief of GRU (individual) [CYBER2] (Linked To: MAIN INTELLIGENCE DIRECTORATE).