plants. alexander hoff is live in washington with details. alexandria to be clear are these warnings for the u.s.? arthel, there ve been no specific cyber threats to the u.s. homeland right now. but u.s. intelligence say if russia were to attack ukraine and the u.s. responded the risk is there. russia is more than capable. we believe that the russian government is responsible for widescale cyber attacks on ukrainian banks this week. those attacks came in two waves according to ukraine defense ministry prefers to denial of service camp and the impact of the functions of bank software followed by spam messages telling users the banks were out of service. now russia has denied involvement but u.s. officials say it s part of destabilization techniques that could precede an invasion. at home and advisory has been ordered to businesses to adopt a heightened posture in order to protect critical assets in the event russia deployed similar tactics here, listen.