But this is not a narrow category -- it means all information classified according to the law.
And, was any of that information classified at the time she received or sent it?
On Monday, it was reported that two emails in a sample of 40 contained information classified as "top secret".
The FBI said it also found information classified as secret at the time it was discussed on email.
The standard could be interpreted as covering information that is not stamped classified but is effectively the same as information classified elsewhere in the government.
Giving her the job would "give her access to defence information classified as secret, including from Nato," he wrote.
He later took pictures of parts of the consulate showing "areas or information classified at the secret level".
Or is that information classified too?
Is there any legitimate national security justification for keeping this information classified?
Panetta told the inspector general that he was unaware his speech contained classified information, though he later acknowledged that it contained information classified at the "secret" level.
