Emails in general are terrible. There's no security. It happens so often. I'm old-fashioned. I put a letter in an envelope and have it hand delivered. My son is 10 years old, and he has grown up computer literate. They start using computers before they can walk. His computer was locked and he unlocked it. And I said, 'Barron, how did you do that?' And he said, 'I won't tell you, Dad.

At an interview with The New York Times' Maureen Dowd. (July 29, 2016)