by Mark Silva and updated

Sen. Barack Obama isn't the only candidate for president whose passport files got an unauthorized viewing at the State Department.

Sen. Hillary Clinton's too.

And Sen. John McCain's.

Secretary of State Condoleezza Rice has advised the senator from New York and former first lady that her passport file was breached in 2007.

And State is fessing up with the Republican senator from Arizona, the GOP's presumptive presidential nominee, as well.

In a statement from her Senate office, Clinton said she had been contacted by Rice. The State Department plans to brief Clinton’s staff today about the unauthorized breach -- just as State had to brief Obama's staff on Thursday about the breach of his files three times this year. And State just acknowledged the breach of McCain's files.
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This follows the State Department's firings of two contract employees and discipline for another for inappropriately examining Obama's files as recently as last week.

While reminiscent of a 1992 campaign-year passport scandal -- when a high-ranking State Department official searched Bill Clinton's files for possibly incriminating information -- State has said it believes the breach in Obama's case was a matter of improper "curiosity.'' No word yet on the motivation for the unauthorized breach of the former first lady's files.

But the State Department's briefing was getting underway at 12:30 pm EDT.

Secretary of State Condoleezza Rice already had apologized to Obama and Clinton, and was likely to offer the same to McCain, a spokesman just said.

"We're very sorry that this happened,'' said Sean McCormack, spokesman for State, "and we take it very seriously. We're going to do a full investigation.''

The Associated Press originally contributed to this report.