Marriott reveals that 500 million Starwood Preferred Guest hotel accounts were hacked
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Marriott revealed this morning that it has identified a major breach of security at Starwood Preferred Guest, which Marriott inherited with its 2016 acquisition of Starwood Hotels & Resorts.
Astonishingly, the breach has been in place since 2014. This means 500 million guest records are involved.
This is not a notional breach. A Marriott investigation has shown that “an unauthorized party had copied and encrypted information”.
For over 300 million of the impacted guests, the data stolen involves:
- name
- mailing address
- telephone number
- email address
- passport number
- SPG account number
- date of birth
- arrival and departure stay information
Some guest have also had payment card numbers and expiration dates stolen, although this data was encrypted. The bad news is that Marriott is refusing to rule out that the hacker had also stolen details of the two steps required to decrypt this information.
For the other 100 million+ guests, only their name and mailing or email address was stolen.
Marriott will begin sending emails today to affected guests whose email addresses are in the Starwood guest reservation database.
You can see the full Marriott statement on their website here.
On a more thoughtful note …. perhaps it is time to reconsider the whole ‘making your travel experience easier’ routine? Whilst there are cost savings to be made as part of this, the airlines and hotels have been keen to collect unnecessary personal information now for many years primarily to smooth your journey.
No longer does a hotel check-in clerk need to manually copy out all your passport information, take your home address details and ask for a credit card deposit (at least for elite members). It is all centrally stored in the system for when you arrive. Except, when that system is not secure, your personal details are at risk.
Given that it now virtually impossible to secure large corporate networks, companies should – at the very least – remove passport and credit card information from the data we are asked to store with them.
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How to earn Marriott Bonvoy points and status from UK credit cards (June 2025)
There are various ways of earning Marriott Bonvoy points from UK credit cards. Many cards also have generous sign-up bonuses.
The official Marriott Bonvoy American Express Card comes with 20,000 points for signing up, 2 points for every £1 you spend and 15 elite night credits per year.
SPECIAL OFFER: Until 15th July 2025, the sign-up bonus on the Marriott Bonvoy American Express Card is TRIPLED to 60,000 Marriott Bonvoy points. This would convert into 25,000 Avios or into 40 other airline schemes. It would also get you at least £300 of Marriott hotel stays based on our 0.5p per point low-end valuation. Other T&C apply and remain unchanged. Click here for our full card review and click here to apply.
You can apply here.

Marriott Bonvoy American Express Card
60,000 points (to 15th July) and 15 elite night credits each year Read our full review
You can also earn Marriott Bonvoy points by converting American Express Membership Rewards points at the rate of 2:3.
Do you know that holders of The Platinum Card from American Express receive FREE Marriott Bonvoy Gold status for as long as they hold the card? It also comes with Hilton Honors Gold, Radisson Rewards Premium and MeliaRewards Gold status.
We reviewed The Platinum Card from American Express in detail here and you can apply here.

The Platinum Card from American Express
50,000 bonus points and great travel benefits – for a large fee Read our full review
You can also earn Marriott Bonvoy points indirectly:
- American Express Preferred Rewards Gold Credit Card (20,000 bonus Amex points)
- The American Express Rewards Credit Card (10,000 bonus Amex points)
and for small business owners:
- The American Express Business Gold Card (20,000 bonus Amex points)
- The American Express Business Platinum Card (50,000 bonus Amex points)
The conversion rate from American Express to Marriott Bonvoy points is 2:3.
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