" While you’re laughing, the hackers are dropping malware into your system. They can also use voice mail if the phone system is integrated with the computer network. In the case of Cozy Bear, a voice purporting to be a female journalist left messages on DNC staffers’ phones asking for information on a story. While the listener was playing the message, she was unknowingly accepting malware. "

― Donna Brazile , Hacks: The Inside Story of the Break-ins and Breakdowns that Put Donald Trump in the White House