My E*Trade acct was attacked and now I have to go

My E*Trade acct was attacked and now I have to go thru an added security step to view/trade online. They said it was not just my acct but many. Wonder if anyone else had any security problems as I thought possibly some nefarious dealings by those that would be hurt by expected trial results could be playing games. Long shot but you never know. Hack attempts came from Japan or Russia.