Hillary Clinton was so cavalier about security at the State Department that she told FBI agents she had no idea that the letter “C” stood for confidential in official e-mails.

Time and again during a 3 1/2-hour interview with agents investigating her private email server, the Democratic presidential candidate shrugged off concerns that her digital behavior was endangering the nation’s security.

Among the more startling things to emerge from 58 pages of interview notes the FBI released Friday were:

When asked about an email chain containing “C’’ markings during her tenure as Secretary of State, Clinton “speculated it was referencing paragraphs marked in alphabetical order.” instead of the obvious designation for confidential or classified data.



Clinton didn’t know the difference between the government’s classifications of TOP SECRET, SECRET, and CONFIDENTIAL. In fact, she told the FBI that she “did not pay attention to the ‘level’ of classification and took all classified information seriously.”



Clinton had 13 separate cell phones, including 11 smart phones linked to two different phone numbers – eight of which were used during her tenure at the state Department.

The feds requested access, but Clinton’s lawyers were unable to provide any of the devices. The FBI said Clinton aide Justin Cooper admitted to destroying at least two of his boss’s old phones by “breaking them in half or hitting them with a hammer.”

An aide deleted a number of Clinton emails from an archived mailbox a few weeks after it became public that she had a private email server.

The aide told the FBI he forgot to make the deletion earlier as planned, had an “oh s–t” moment and the timing was coincidental.

But agents said there was evidence the deletions were not routine because the aide used software called BleachBit intended to make the emails disappear permanently.

A laptop containing a copy of the emails on Clinton’s private server was lost in the mail. An aide told the FBI that “Clinton’s staff was moving offices at the time, and it would have been easy for the package to get lost during the transition period.”

A thumb drive containing the second copy of the archive also was never found.

Clinton’s camp claimed to be pleased that the FBI released materials from the July 2 interview, a highly unusual move that came after critics called for Clinton to be prosecuted for sending classified data.

“While her use of a single email account was clearly a mistake and she has taken responsibility for it, these materials make clear why the Justice Department believed there was no basis to move forward with this case,” said spokesman Brian Fallon.

But the FBI documents left many unanswered questions because many pages contained extensive redactions.

In fact, about one quarter of the report was left blank.

The FBI report found 81 of Clinton’s e-mail chains contained information that were classified at the time they were sent.

To date, the FBI has recovered from 17,448 unique work-related and personal emails that were not provided by Clinton’s attorneys.

Asked if she was instructed about the preservation of records when she was leaving office in 2013, Clinton noted that she suffered a concussion in December 2012 and “ could not recall every briefing she received.”

Donald Trump said he was “shocked” by the details in the FBI report.

“After reading these documents, I really don’t understand how she was able to get away from prosecution,” he said.