A cocky Hillary Clinton on Tuesday shrugged off the questions swirling around materials culled from her private email account which the U.S. intelligence community has since classified as ‘top secret,’ making light of a reporter who asked if she had ‘wiped the server’ clean.

‘What, like with a cloth or something?’ Clinton chuckled? ‘Well, no. I don’t know how it works digitally at all.’

The contentious exchanges with reporters from CNN and Fox News came during a press conference following a town hall event in Las Vegas, Nevada.

Clinton stuck to the most recent version of her denial that she may have exposed state secrets to prying eyes by exclusively using a non-secure email account, hosted in her upstate New York home, during the four years she was secretary of state.

‘Whether it was a personal account or a government account,’ she said, ‘I did not send classified material. And I did not receive any material that was marked or designated classified – which is the way you know whether something is.’