g-7 meeting next thursday. of course, whether or not invasion happens before then remains to be seen. if that meeting still goes forward, that also remains to be seen. the two national security officials attributed the hack that happened in ukraine, that incareer attack that they said was one of the large nest their nation's history. now the white house feels comfortable to go on the record saying they do believe russia is responsible. >> we have assess that had russia was responsible for the distributed denial of service attacks that occurred earlier this week. i will note that the speed with which we made that attribution is very unusual. we've done so because of a need to call out the behavior quickly as part of holding nations accountable when they conduct disruptive or destabilizing cyber activity. >> reporter: throws the