Could Hillary have compromised the president's emails?

“He’s protected by a really, really good setup. No one in the country has better security than he has,” said Richard “Dickie” George, a former National Security Agency technical director who led a team that built Obama’s Blackberry…

It’s not impossible that anyone who got into Clinton’s emails would have seen Obama’s email address. But George said that even if Obama’s email address was exposed, it would have been highly unlikely that any outsiders would successfully send emails to the president of the United States – in part because of the monitoring, but also because Obama’s email account uses “whitelisting,” meaning it only accepts emails from approved addresses.

Unlike regular email accounts, where a user can block emails from certain addresses, anyone who wants to email Obama has to have their address physically added in advance to a list of acceptable emails, George said.

And some cybersecurity officials are sure that Obama would have been careful not to say anything sensitive — because his emails to Clinton would have been unclassified, and Obama would have been well aware of that.