sentinel. and brian karem will be a guest later on on morning joe. and a widespread cyber attack hitting banks across the globe. chernobyl s nuclear site was also affected, forcing radiation checks to be manually carried out. ukraine s foreign minister said the government s system went down but vital systems were not affected. it appears ransomware that was used similar to the wanna cry ransom attack. and also locked until a bitcoin ransom is paid. experts say this attack is more sophisticated and more robust. creators of the malware have borrowed from the leaked agency code. yesterday, one of the biggest stories, the white