▁elect rical ▁grid ▁is ▁under ▁cy ber - att ack ▁by ▁the ▁United ▁States . ▁The ▁New ▁York ▁Times ▁reported ▁that ▁American ▁hack ers ▁from ▁the ▁United ▁States ▁Cy ber ▁Command ▁plant ed ▁mal ware ▁potentially ▁capable ▁of ▁dis rupt ing ▁the ▁Russian ▁elect rical ▁grid . ▁ ▁Other ▁ ▁In ▁ 1 9 8 2 , ▁a ▁computer ▁control ▁system ▁st olen ▁from ▁a ▁Canadian ▁company ▁by ▁Soviet ▁sp ies ▁caused ▁a ▁Soviet ▁gas ▁pipeline ▁to ▁expl ode . ▁It ▁has ▁been ▁alleg ed ▁that ▁code ▁for ▁the ▁control ▁system ▁had ▁been ▁modified ▁by ▁the ▁C IA ▁to ▁include ▁a ▁logic ▁bomb ▁which ▁changed ▁the ▁p ump ▁spe eds ▁to ▁cause ▁the ▁explos ion , ▁but ▁this ▁is ▁disput ed . ▁ ▁A ▁ 1 ▁April ▁ 1 9 9 1 ▁article ▁in ▁Info World ▁Magazine ▁" Meta - V irus ▁Set ▁to ▁Un le ash ▁Pl ague ▁on ▁Windows ▁ 3 . 0 ▁Users " ▁by ▁John ▁G ant z ▁was ▁pur port ed ▁to ▁be ▁an ▁extremely ▁early ▁example ▁of ▁cy ber ▁war fare ▁between ▁ 2 ▁countries . ▁In ▁fact ▁the ▁" AF / 9 1 ▁virus " ▁was ▁an ▁April ▁F ools ▁Jo ke ▁that ▁was ▁misunder stood ▁and ▁widely ▁re - report ed ▁as ▁fact ▁by ▁cred ul ous ▁media . ▁ ▁Cy ber ▁threat ▁information ▁sharing ▁The ▁Pent agon ▁has ▁had ▁an ▁information ▁sharing ▁arrangement , ▁the ▁Def ense ▁Indust rial ▁Base ▁Cy ber security ▁and ▁Information ▁Ass urance ▁( DI BC IA ) ▁program ,