Re: [EXTERNAL] Re: [SECURITY] Chegg Data Breach notification (Thanks to HIBP)

[Zachary Yamada <zachary.yamada () CHEMEKETA EDU>]

Garrett,

"RaidForums" has individuals who are offering different formats of the
dump. I've seen both the full database with hashed passwords and subset
databases with about two million
(out of about 35 million total records if I recall correctly) un-hashed
passwords.

I'd be *very* careful visiting RaidForums from a work (or any) environment,
going beyond the concerns of hanging out on a forum where people are buying
and selling leaked databases and other legally dubious materials, it's a
somewhat not-safe-for-work website/community.

Best,

Zachary Yamada, CEH, CHFI
Chemeketa Community College
Information Security Team Lead, Information Technology
Adjunct Faculty, Computer Information Systems
503.584.7367
zachary.yamada () chemeketa edu


On Mon, Sep 23, 2019 at 8:51 AM Garrett McManaway <
garrett.mcmanaway () wayne edu> wrote:

> Does anyone have the raw password dump or able to point me to where it
> exist?
>
>
>
> Garrett McManaway
>
> CISO & Sr. Director
>
> C&IT - Information Security and Compliance
>
> Wayne State University
>
> Phone: 313-577-3454
>
>
>
> *From:* The EDUCAUSE Security Community Group Listserv <
> SECURITY () LISTSERV EDUCAUSE EDU> *On Behalf Of *Frank Barton
> *Sent:* Monday, September 23, 2019 9:21 AM
> *To:* SECURITY () LISTSERV EDUCAUSE EDU
> *Subject:* Re: [SECURITY] Chegg Data Breach notification (Thanks to HIBP)
>
>
>
> Just to 'close the loop' on this, we're seeing so many attacks based on
> the chegg list right now that it isn't even funny. luckily many of them are
> failing, but we're seeing a good number of successful 'password reuse'
> attacks that we can confirm are linked directly to the chegg list.
>
>
>
> Frank
>
>
>
> On Fri, Aug 16, 2019 at 7:17 PM Joseph Tam <tam () math ubc ca> wrote:
>
> (Speaking as someone who deals with a few hundred, not a few thousand
> accounts.)
>
> Frank Barton <bartonf () HUSSON EDU> writes:
>
> > Are you notifying impacted users?
>
> Yes.  I make reference to the most comprehensive sites I can find that
> explain the data breach -- disturbingly, some vendors not very forthcoming
> about it--  as well as general security advice on password diversifiction,
> identity fraud, etc.
>
> > Are you requiring a password reset for campus systems?
>
> No.  Unless you have evidence that the same password is being used, I rely
> on the recipient to judge for themselves what are appropriate actions.
> Forcing people to change their password based on paranoia, like frequent
> password rotation, is counterproductive.
>
> Ken Connelly <ken.connelly () UNI EDU> writes:
>
> > For all similar reports that include a password in the
> > stolen data, we send this message to the affected accounts.
>
> These breaches leak all sorts of data, and hashed passwords may not be
> as damaging as attempts at identity fraud, so I notify users about that
> as well.
>
> (In sig)
> > Any request to divulge your UNI password via e-mail is fraudulent!
>
> Most phish will try and instruct you to enter it into a web form,
> but making this distinction in a short sig is doomed to failure.
> Reducing security to a slogan is the opposite of what you want.
>
> "Jim A. Bole" <jbole () STEVENSON EDU> writes:
>
> > We subscribe to haveibeenpwned.com's domain search notification
> service. We=
> > 've seen a steady increase in notifications around these types of
> services:
> > -          Chegg
> > -          Canva
> > -          Adobe
>
> I'm also subscribed there, and the recent spike in reported accounts
> seems to be sourced from the same individual.  Apparently, this person
> found a way to get a hold of a lot breached data.  (Maybe working
> undercover?)
>
> From:    Blake M Bourgeois <bbour53 () LSU EDU>
>
> > For what it is worth, we saw the data in the breach being leveraged as
> > early as May 2018 and were able to finally confirm that the large
> > number of account compromises then were a result of this breach.
>
> I've observed that these data leak notifications get less useful over
> time.  Not only do many accounts go extinct (most of the accounts I
> get notified about don't exist anymore), but action on earlier breach
> notices also protect from some later breaches.  I see a lot of overlap
> on accounts where the same user account shows up again and again.
>
> These leaked credentials are exploited though: some of the frequently
> reported leaked credentials also show up frequently in my auth failure
> logs.
>
> Joseph Tam <tam () math ubc ca>
>
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>
>
> --
>
> Frank Barton, MBA
>
> Security+, ACMT, MCP
>
> IT Systems Administrator
>
> Husson University
>
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