https://www.politico.com/story/2015/10/hillary-clinton-email-server-hacked-china-south-korea-germany-214546
Hillary Clinton's private email server containing tens of thousands of messages from her tenure as secretary of state — including more than 400 now considered classified — was the subject of hacking attempts from China, South Korea and Germany after she stepped down in 2013, according to Congressional investigators.
The Senate Homeland Security and Government Affairs Committee has found evidence of attempted intrusions into Clinton's server in 2013 and 2014, according to a letter Chairman Ron Johnson (R-Wis.) sent Monday to a Florida-based security firm tasked with protecting the hardware.
The contractor, SECNAP Network Security, identified the attacks, but according to internal emails cited and briefly quoted in the Johnson letter, Clinton's sever may have lacked a threat-detection program for three months, Johnson says.