'No indication' of cyberattack in Wall Street plunge, administration says

Deputy National Security Adviser John Brennan said Sunday that the White House does not believe Thursday's Wall Street nosedive was the result of a cyberattack.

The market was already shaky because of the rapidly unfolding financial crisis in Greece last week, but trader error is also being investigated in the nearly 1,000-point plunge.

"There's no indication that it was" a cyberattack, Brennan said when asked about the probe on "Fox News Sunday."

On Friday, White House spokesman Robert Gibbs said that the administration was leaving open the possibility of sabotage.

“I wouldn’t rule anything in or rule anything out,” Gibbs told reporters in his West Wing office Friday. “I think that’s, appropriately, why they’re reviewing what may or may not have happened.”

Gibbs said President Barack ObamaBarack ObamaPerez: Honor the fallen by helping veterans EPA chief puts new spotlight on cleanup program Defense hawks gird for budget brawl MORE thinks the “the circumstances around this is something that should be watched or should be reviewed and looked at.”