The FBI reported that 113 emails contained classified information (that should only have been on government controlled servers) that were marked classified at the time of sending. Of the 113, 22 were top secret, again at the time they were sent.
The scariest/funniest thing out of all of it is that Comey said that using Gmail would have been more secure.
The scariest/funniest thing out of all of it is that Comey said that using Gmail would have been more secure.
Source: http://thehill.com/policy/national-security/286513-fbi-direc... (Plus you can find the same information from hundreds of other credible news organizations, this was just the one I quickly google'd)