Questions have emerged over whether David Petraeus' mistress leaked details of the CIA's investigation into the deadly attack on the U.S. consulate in Benghazi.

Suspicions over how much Paula Broadwell knew about the probe come as the CIA's former boss stepped down on Friday over the alleged affair, days before he was to testify in the investigation.

Officials say they expect he will still testify over the incident, which left four Americans dead on September 11 this year, yet it will be delayed. The new concern comes over what, if any, confidential information he shared with his biographer and alleged mistress. 

Broadwell, a married army veteran who met Petraeus in 2006, was speaking at the University of Denver on October 26 when she was asked about the attack.

'Now I don’t know if a lot of you heard this, but the CIA annex had actually - had taken a couple of Libyan militia members prisoner and they think that the attack on the consulate was an effort to try to get these prisoners back,' she said, according to the Daily Beast. 'So that's still being vetted.' 

In response, the CIA denied that claim on Sunday when the tape of Broadwell's talk surfaced, saying that it was not true. The agency confirmed that since 2009 they have not had the authority to detain prisoners.

'Any suggestion that the Agency is still in the detention business is uninformed and baseless,' they told the site. 

Broadwell  continued,'As a former intel officer, it’s frustrating to me because it reveals our sources and methods. I don’t think the public needs to know all of that.

During the lengthy discussion, Broadwell's high aspirations are clear as she spoke repeatedly about how she has had the life-long goal of becoming the National Security Adviser. When asked if she had the chance to talk to any previous NSA's, she said that she had not but she considers 'Maddie' and 'Condi' to be great role models, referring to Madeline Albright and Condoleezza Rice by their nicknames. 
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