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Chess.com Leak Exposes 7.3M Users, Evidence Points to Scraping

https://securityaffairs.com/197174/breaking-news/chess-com-leak-exposes-7-3-million-users-evidence-points-to-scraping.html
24•kristianp•2h ago

Comments

unixhero•1h ago
Is scraping wrong that, is the question.
Shank•1h ago
> Every record has gam_audiences and audiences_member_of populated, Google Ad Manager audience segments, with values like coach-nudge experiment groups, trial eligibility, lapsed-user cohorts and rating-band targeting.

It sure seems like the evidence doesn't point to scraping to me.

emodendroket•17m ago
I'm assuming they're basing this on the no-passwords part.
happosai•6m ago
Have I been pwned reports 99% of email addresses from chess.com leak were already in their database. Rather strong indicator that the Hacker scraped an API with a list of email addresses.

https://infosec.exchange/@haveibeenpwned/117263977537458510

sidrag22•1h ago
> The data had been pulled by abusing the platform’s find-friends feature

Sounds like the find-friends feature shouldn't allow access to the majority of that data unless the "friend" accepts, don't think the "scraper" got 7mil accepts just because they had access to emails... To me this is 100% a breach, even more so because its already happened once years ago to 700k, and they changed nothing to prevent it.

samus•36m ago
It might very well be possible that there were API endpoints that exposed way too much information. I also think that this wouldn't qualify as "scraping".
ed_mercer•38m ago
email? Is a user's email up for grabs just like that?
TheSpacerr•34m ago
Basically our data is free.

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Chess.com Leak Exposes 7.3M Users, Evidence Points to Scraping

https://securityaffairs.com/197174/breaking-news/chess-com-leak-exposes-7-3-million-users-evidenc...
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