▁had ▁been ▁recovered . ▁ ▁After ▁the ▁comprom ise ▁of ▁their ▁system , ▁Cit ib ank ▁updated ▁their ▁systems ▁to ▁use ▁Dynamic ▁Enc ryption ▁Card , ▁a ▁physical ▁authentication ▁token . ▁However , ▁it ▁was ▁not ▁revealed ▁how ▁Le vin ▁had ▁gained ▁access ▁to ▁the ▁relevant ▁account ▁access ▁details . ▁Following ▁his ▁arrest ▁in ▁ 1 9 9 5 , ▁anonymous ▁members ▁of ▁hack ing ▁groups ▁based ▁in ▁St . ▁Petersburg ▁claimed ▁that ▁Le vin ▁did ▁not ▁have ▁the ▁technical ▁ab ilities ▁to ▁break ▁into ▁Cit ib ank ' s ▁systems , ▁that ▁they ▁had ▁cultiv ated ▁access ▁to ▁systems ▁deep ▁within ▁the ▁bank ' s ▁network , ▁and ▁that ▁these ▁access ▁details ▁had ▁been ▁sold ▁to ▁Le vin ▁for ▁$ 1 0 0 . ▁ ▁The ▁revel ation ▁a ▁de cade ▁later ▁▁ ▁In ▁ 2 0 0 5 ▁an ▁alleg ed ▁member ▁of ▁the ▁former ▁St . ▁Petersburg ▁ha cker ▁group , ▁claim ing ▁to ▁be ▁one ▁of ▁the ▁original ▁Cit ib ank ▁pen et rat ors , ▁published ▁under ▁the ▁name ▁Ark ano i D ▁a ▁memor and um ▁on ▁popular ▁Pro vider . net . ru ▁website ▁dedicated ▁to ▁tele com ▁market . ▁According ▁to ▁him , ▁Le vin ▁was ▁not ▁actually ▁a ▁scient ist ▁( math ematic ian , ▁bi ologist ▁or ▁the ▁like ) ▁but ▁a ▁kind ▁of ▁ordinary ▁system ▁administrator ▁who ▁managed ▁to ▁get ▁hands ▁on ▁the ▁ready ▁data ▁about ▁how ▁to ▁pen et rate ▁in ▁Cit ib ank ▁machines ▁and ▁then ▁explo it ▁them .