But by July she was just "extremely careless".
John Solomon for The Hill notes here that
'The change is significant, since federal law states that gross negligence in handling the nation’s intelligence can be punished criminally with prison time or fines. ... “There is evidence to support a conclusion that Secretary Clinton, and others, used the email server in a manner that was grossly negligent with respect to the handling of classified information,” reads the statement, one of Comey’s earliest drafts from May 2, 2016.'