The White House is investigating the apparent hack of an e-mail account belonging to a low-level contractor that purportedly contained a scan of Michelle Obama’s passport and information about vice presidential travel. An image that appeared to be of the first lady’s passport was posted online.

“I can tell you that administration officials are taking a look at the information that has been disclosed,” said the White House Press Secretary Josh Earnest. “We take any reports about any cyber breach seriously, particularly if it may include some sensitive information. At this point, I can’t speak to the authenticity of the information released. “At this point, I cannot announce any sort of conclusion that has been reached about the individual or individuals who may have been responsible for the cyber breach of this information,” Earnest said.

He couldn’t confirm the authenticity of the passport scan, and said the e-mails in question belonged to a contractor who was hired for individual advance jobs, and was not a full-time White House staffer.