cyber attacks are some of the most classified confidential operations the u.s. military conducts. so they are saying nothing officially. but a u.s. official told our kylie atwood, indeed, they had an attack affiliated with the revolution area core and were tracking tankers in the persian gulf and now presumably if that attack is successful, after attacking four tankers, six tankers, actually, if you will, the iranian will no longer be able to to do that if their software for tracking those ships now is faulty due to a signer attack. the pittsburgh just not saying anything about this at all. we do know in the past, the u.s. has done some cyber operations. it's one way of getting the job done without having to engage in kinetic military option. >> so we have another acting defense secretary in the midst of these tension as well as two