Michelle Obama data breach: purported scan of first lady's passport appears online

Secret Service voices concern after details emerge from alleged hack of White House contractor's Gmail account

The White House is looking into a cyber breach after what appeared to be a scan of first lady Michelle Obama's passport was posted online.

The fresh disclosures, which included emails to and from White House staff, raised further concerns about the security of sensitive systems following a string of breaches affecting government agencies, private companies and the Democratic National Committee. Though officials declined to say whether the disclosures were authentic, there were no immediate reasons to suspect they were not.