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eBay user data for sale?

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31–40 of 110 posts

Re: eBay user data for sale?

#31

Earlier quoted context omitted.

The passwords look like this: pbkdf2_sha256$12000$zhMKabMgayvK$iniviUCcX9y2PYJcm0AoB3MhybRA1z2Cec1DZnLWxWc= I do not know how much time it would take to bruteforce these. Can any experienced HNers weigh in?

I am not an expert by any means, but I believe pbkdf2 is a recommended key stretching function for a hashing method (which looks to be sha256). http://en.wikipedia.org/wiki/PBKDF2 I think cracking difficulty depends on how many "iterations" they use though.

The iterations are listed as 12000. This value is supposed to double every two years and is around 128k I believe currently.

Re: eBay user data for sale?

#35

I have an eBay account, but I haven't used it in years, and I doubt I remember the password. How worried about this should I be? Are there plaintext passwords exposed, or do they just have a lot of properly salted hashes that aren't much use to an attacker?

From the linked sample data, passwords are pbkdf2-sha256 while name/address/phone/birth date are clear text.

Re: eBay user data for sale?

#40
post #20
post #15

Earlier quoted context omitted.

It's the DoB which is the giveaway (that this is fake). eBay doesn't collect date of birth, but does collect lots of other authentication information. EDIT: I stand corrected, see the reply by sp332 below.

eBay says the data includes DoB. https://blog.ebay.com/ebay-inc-ask-ebay-users-change-passwor... [edit: better link] Maybe they only collect it for certain customers?

In that case ebay users should probably change their date of birth too ;-).
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