targeted, allegedly by an outside government. we're now learning details of a computer attack on sands casinos. as cnn's brian todd reports, that cyberattack may have been meant to punish the company's ceo for comments he made about iran. >> reporter: a cascading attack, servers shut down, screens go blank. a rush to unplug computers. this wasn't the hack on sony. this attack hit the world's largest casino operation, including the venetian hotel in las vegas ten months ago, and this also may have been the work of a rogue nation. cnn has learned on february 10th of this year, thousands of employees at sands casinos in las vegas and bethlehem, pennsylvania, had their computers hit. one former employee says, quote, hundreds of people were calling i.t. iran is suspected to be behind the attack, according to reports in bloomberg business week and slate. sands won't comment. one expert believes iran has the capability to do this.