Marriott says data breach impacted fewer guests, but millions of passport numbers were exposed

Marriott International announced Friday that fewer guests were impacted by a breach of its Starwood reservations database than originally announced, but that millions of unencrypted passport numbers were accessed.

The chain said in a release that it now believes as many as 383 million records were accessed in the hack, but noted that some of those records were repeats impacting the same guests. That's down from the 500 million guests originally believed to be impacted by the hack.

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However, Marriott said that roughly 5.25 million unencrypted passport numbers were obtained by hackers, as well as 20.3 million encrypted passport numbers.

And about 8.6 million encrypted debit and credit cards were accessed by a third party, with about 354,000 of those cards not having expired by September of last year.

Marriott noted that there is no evidence that the hackers were able to decrypt the encrypted passport and payment card numbers.

Organizations will often lower the number of the parties impacted in a breach after investigating the hack further.

Marriott's disclosure of the massive breach late last year quickly sparked calls for a federal privacy standard.

Congress is expected to take up privacy legislation in the coming months, including bills from Sen. Brian SchatzBrian Emanuel SchatzTrump defends using DOD funds on border wall: 'Some of the generals think that this is more important' Overnight Health Care — Sponsored by America's 340B Hospitals — Push for cosponsors for new 'Medicare for all' bill | Court lets Dems defend ObamaCare | Flu season not as severe as last year, CDC says Dems unveil bill to let VA doctors prescribe medical marijuana MORE (D-Hawaii) and Sen. Joe KennedyJoseph (Joe) Patrick KennedyJoe Kennedy introduces resolution rejecting Trump’s transgender military ban Warren launches White House bid with call for 'structural change' Joe Kennedy to endorse Warren during campaign announcement MORE (R-La.).