“When she set the email server up she had been under Secret Service protection for at least 16 years so she knew about security.”
The Secret Service gave her physical security of her disks. No one was going to break into her home and get her server with the Secret Service around. I’m sure they had no idea Hillary had a email server in her home to circumvent the State Department’s security. She also needed absolute internet security.
We already know that Guccifer hacked into Sydney’s emails. From that hack, Guccifer learned Hillary’s email address. So I’m sure there are foreign governments that could do the same.
In 2009 there was supposed to be an assassination plot against Hillary with one of her trips overseas, Kenya IIRC.
The information as to where Hillary was going to be on what day had to originate from Hillary’s State Dept.
The Secret Service would have checked where the info came from including the possibility someone hacked into someone’s email including Hillary’s.
If Hillary didn’t have a secure email before that she did after.