After Clinton disclosures, White House sheds more light on Obama email use

President Barack Obama uses email as part of a specialized system allowing him to send and receive messages from only a limited number of high-ranking administration officials, the White House said.

"There are some common-sense security measures that have put in place to protect the president's e-mail. I think for obvious reasons, we don't discuss a lot of those measures publicly," White House Press Secretary Josh Earnest said. "But the fact that it's not easy to predict exactly what the president's e-mail address is, is in fact one of those measures." The White House has acknowledged Obama's email use since the earliest days of his presidency, saying he uses it to keep in touch with a small circle of friends and senior officials. But the subject reemerged following revelations that President Obama used a pseudonym in his emails to former Secretary of State Hillary Clinton.