The reviews are expected to be completed within a week, likely to be followed by an external investigation, Bolden added.
In the interim, NASA closed its Technical Reports database “while we review whether there is a risk of export control documents being made available on this website,” Bolden said.
Other security upgrades include a moratorium on granting any new access to NASA facilities for individuals from China, Myanmar, Eritrea, Iran, North Korea, Saudi Arabia, Sudan and Uzbekistan.
In addition, 281 foreign nationals, including 192 from China, who currently have access to NASA facilities have had their remote computer access shut down, Bolden said.
“This is about national security, not about NASA security, and I take that personally. I’m responsible and I will hold myself accountable once those reviews are completed,” Bolden said.