Rep. Frank Wolf (R., Va.) revealed at an event on Monday that his office was anonymously informed about the CIA employee, who is purportedly facing an internal backlash after refusing to sign a legal document barring him from publicly or privately discussing events surrounding the Benghazi attack.

The revelation comes about a month after several media outlets reported that CIA employees with knowledge of the terror attack had been forced to sign non-disclosure agreements (NDA) and submit to regular polygraph tests.

“The reports on the NDA are accurate. We’re getting people who call,” Wolf said Monday during an event marking the launch of the Citizens’ Commission on Benghazi, a panel of former military and intelligence officials who are investigating unanswered questions surrounding the Benghazi incident.

Wolf’s office first received the anonymous call earlier in the summer, soon after CNN and Fox News reported on the NDAs and polygraph tests.