The New York Times called the attack on its website "a big deal" after a group claiming to be the Syrian Electronic Army caused disruption.
Marc Frons, chief information officer for The New York Times Company, said: “In terms of the sophistication of the attack, this is a big deal.
“It’s sort of like breaking into the local savings and loan versus breaking into Fort Knox.
"A domain registrar should have extremely tight security because they are holding the security to hundreds if not thousands of websites.”
More top news
The suspect in the death of North Korean leader Kim Jong-un's half brother was paid $90 to help carry out what she thought was a "prank".
During an anti-Trump rally, the Oscar-winning actress urged people to stand up to the President's 'attack on democracy'.
The White House has said it would be "absurd" to link the shooting of two Indian men in Kansas to Donald Trump's rhetoric on immigration.