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Starwood/Marriott Data Breach 500 Million Guests affected, Marriott fined £18.4m

Old Nov 30, 2018, 5:05 am
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From Starwood Lurker team :
Please visit  info.starwoodhotels.com  for more information about this incident, available resources and steps you can take.

Marriott has announced a massive breach of data belonging to 500 million guests who stayed at hotel brands including W, Sheraton, and Westin.
Marriott announced on Friday that it had "taken measures to investigate and address a data security incident" that stemmed from its Starwood guest authorization database.
The company said it believes that around 500 million people's information was accessed, including an unspecified number who had their credit card details taken. It affects customers who made bookings on or before September 10, 2018.

http://uk.businessinsider.com/marriott-data-breach-500-million-guests-affected-2018-11?r=US&IR=T
https://www.prnewswire.com/news-releases/marriott-announces-starwood-guest-reservation-database-security-incident-300758155.html

You can enroll in the "identity" monitoring service provided by Marriott due to this breach here, it cannot be called "credit monitoring" because it doesn't provide access to viewing credit bureau report data (as held by Equifax, TransUnion, Experian) nor notifications when credit report data changes :
https://answers.kroll.com/us/index.html
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Starwood/Marriott Data Breach 500 Million Guests affected, Marriott fined £18.4m

Old Nov 30, 2018, 6:35 am
  #46  
 
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Originally Posted by chp
The Yahoo! mail breach in 2013 affected around 3 billion accounts. They wouldn't have had the amount of personal information leaked in this breach, though.

Email Password stolen Vs. Passport, DOB, CC info, etc.
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Old Nov 30, 2018, 6:40 am
  #47  
 
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Originally Posted by ethernal
It is almost certainly 500 million reservations and not 500 million unique guests.
The Starwood info site says “information on up to approximately 500 million guests”
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Old Nov 30, 2018, 6:40 am
  #48  
 
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Originally Posted by Orange County Commuter
While perhaps Marriott should have found it sooner, the issue started well before Marriott showed up
The issues became Marriott's when Marriott acquired Starwood two years ago in 2016.

More troubling is the point that Marriott should have caught this sooner. How was this not caught as part of due diligence, or during the integration of the Starwood Reservations system to Marriott.com/with the account linking for August 18th? The timeline clearly states that Marriott only discovered the unauthorized access on the Starwood network in September 2018, which is after Marriott merged loyalty programs with Starwod.

Originally Posted by getagb
The Starwood info site says “information on up to approximately 500 million guests”
It's weasel words (the phrase up to) because they don't want to be accused of minimizing/downplaying/understating the impact later. I could have multiple SPG account numbers, or I could book without SPG number one time, or older records might be incomplete (where it's not clear if I'm the same John Doe on one reservation as another because there is not enough other information [address, date of birth, email, etc.] to be sure if two reservations are the same person or entirely different people), etc.

It's probably a count of the total number of data records (reservation data) from the period when they can identify the breach having started to the time when they cut it off, a simple count statement on the # of rows in the database.
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Old Nov 30, 2018, 6:42 am
  #49  
 
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Originally Posted by Starwood Lurker IV
Dear all,

Thanks for reaching out about the Starwood guest reservation database security incident. Please visit  info.starwoodhotels.com  for more information about this incident, available resources and steps you can take.

All the best,

Alice K.
Social Media Specialist
Marriott International

[email protected]

Awesome so you give away "some combination of name, mailing address, phone number, email address, passport number, Starwood Preferred Guest (“SPG”) account information, date of birth, gender, arrival and departure information, reservation date, and communication preferences. For some, the information also includes payment card numbers and payment card expiration dates"

and to make up for it you offer just 1 YEAR of WebWatcher and all is forgotten? Marriott is so cheap they can't even pay for lifetime monitoring or at least 3-5 years.
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Old Nov 30, 2018, 6:44 am
  #50  
 
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AmEx reports credit cards numbers not involved with this security breach so no need to replace existing card, yet!
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Old Nov 30, 2018, 6:47 am
  #51  
 
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Originally Posted by Tedyuscung
AmEx reports credit cards numbers not involved with this security breach so no need to replace existing card, yet!
Well according to the info.starwoodhotels.com domain, credit card data was on some of the reservations, but it was AES encrypted and required at least two pieces of information (keys) to decrypt. However, according to the same site, Marriott cannot definitively prove that the people who stole the records also didn't have access to these encryption keys (and therefore would be able to decrypt the credit card data to a usable/readable format).

Amex, Chase, and other issuers will probably wait for signs of misuse in a pattern (e.g. seeing a fraud pattern on their cardholders who had stayed at SPG properties from 2014-2018) or for Marriott to report that there is forensic evidence on the Starwood servers that the hackers did access/use the information required to decrypt the card numbers before going to mass reissues.
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Old Nov 30, 2018, 6:47 am
  #52  
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Originally Posted by Tedyuscung
AmEx reports credit cards numbers not involved with this security breach so no need to replace existing card, yet!
That’s good news. I’ve still not thrown away the envelope my new AMEX came in after BA leaked my details all over the web.
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Old Nov 30, 2018, 6:49 am
  #53  
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i don't have my passport information on my spg/marriott account but i do have my credit card info....my card is due to expire in the next 3 months so it may be a good idea to just request them to send a new one now....
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Old Nov 30, 2018, 6:50 am
  #54  
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Originally Posted by phltraveler
Well according to the info.starwoodhotels.com domain, credit card data was on some of the reservations, but it was AES encrypted and required at least two pieces of information (keys) to decrypt. However, according to the same site, Marriott cannot definitively prove that the people who stole the records also didn't have access to these encryption keys (and therefore would be able to decrypt the credit card data to a usable/readable format).

Amex, Chase, and other issuers will probably wait for signs of misuse in a pattern (e.g. seeing a fraud pattern on their cardholders who had stayed at SPG properties from 2014-2018) or for Marriott to report that there is forensic evidence on the Starwood servers that the hackers did access/use the information required to decrypt the card numbers before going to mass reissues.
If the hacking party knows its criminal marketplace and has what they need to use Marriott's stored bank card info -- they won't dump the stolen card data in one whole bunch.

Originally Posted by Tedyuscung
AmEx reports credit cards numbers not involved with this security breach so no need to replace existing card, yet!
That's interesting, since Marriott's PR statements on this earlier today had said they weren't clear about whether or not card info had been lifted and usable too or not.

This news coming out on a Friday -- instead of earlier in the work week -- does beg questions about whether or not the timing of the public release by Marriott was intentionally set by Marriott for Friday for PR management purposes.
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Old Nov 30, 2018, 6:53 am
  #55  
 
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Originally Posted by PointWeasel
You have to be kidding me.

info.starwoodhotels.com

I have had to replace 3 Amex cards this year due to being compromised.

Well done Marriott, keep up the good job.

Now I have to wait for the email saying I was part of the millions.

I have had to replace my Marriot Visa 6x in the last 2 years. I have been tring and trying to figure out the root cause
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Old Nov 30, 2018, 6:53 am
  #56  
 
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It’s an unbelievably complex subject. No one could have possibly known how complicated IT security is!
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Old Nov 30, 2018, 6:59 am
  #57  
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Originally Posted by sethMCOflyer
It’s an unbelievably complex subject. No one could have possibly known how complicated IT security is!
It's unbelievably simple to know that major travel service providers ask for and keep a lot of customers' personal information. And it's unbelievably simple to know that such information is targeted by hackers -- criminals and even state-backed actors -- for a reason.

Maybe the information should be more properly protected (by the company wanting all such info) or perhaps even not kept at all by the company? The less you have, the less you have to simply protect? Isn't it that simple?
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Old Nov 30, 2018, 7:00 am
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Old Nov 30, 2018, 7:25 am
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No Swiss telephone number listed on info.starwood.com
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Old Nov 30, 2018, 7:28 am
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Please correct me if I'm wrong, but my impression of security breaches are they are much less difficult to find when the initial exposure happens than in a forensic audit long afterwards. I had always assumed that it was like finding an error in someone else's code that happened a long time ago. Depending on the complexity and importance of the software, financial services companies will sometimes completely rewrite pricing or hedging models instead of using something developed by a predecessor. Marriott has performed poorly in a lot of ways since the merger and this is one more example of a lack of competence, but in this instance Starwood executives deserve most of the blame since it was their company's IT and management that allowed the backdoor into customer's data.
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