Is it me or is FBI director wrong in saying Hillary should have known better?

[Matrosov]

22. The more I think about it, the more questions I have

I said earlier she should've known better than to transmit classified information over an unsecured system. After all, her use of a private server in general wasn't the problem, only the sending and receiving of classified information. But the more I think about it, the more questions I have

For example, what specifically constitutes a secured system? Do these requirements extent to private systems used for transmitting classified information? If not, the problem isn't with anyone but the people who wrote the rules.

If they do extend to private systems used for transmitting classified information, and Clinton's server did not meet these requirements, was she even aware? There's a difference between using an unsecured system for sensitive information because you're being careless and using it because your technical people led you to believe it was in fact a secure system.