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The unattributable “db8151dd” data breach

troyhunt.com

21–30 of 155 posts

Re: The unattributable “db8151dd” data breach

#21
post #2

For the people that use unique per-merchant e-mail addresses (like someone+amazon@...), could you try some of those aliases on HaveIBeenPwned and see which ones come up in this breach? That might shed some light onto its origin.

I am listed, but it's an address that was never used to register or subscribe to anything online. It's also under a year old.

It must've been vacuumed up from other people's contact or email data.

Re: The unattributable “db8151dd” data breach

#23

> Email addresses, Job titles, Names, Phone numbers, Physical addresses, Social media profiles I just got the email notification from HIBP (Have I Been Pwned) a few minutes ago [1], but I am not worried about the compromised data because 1) my personal email address, job title and phone number are all visible in my resume which is publicly available in my website, I actually encourage people —mostly tech recruiters—…

On the BambooHR issue, can you elaborate a bit more?

Re: The unattributable “db8151dd” data breach

#24
post #11
post #2

For the people that use unique per-merchant e-mail addresses (like someone+amazon@...), could you try some of those aliases on HaveIBeenPwned and see which ones come up in this breach? That might shed some light onto its origin.

BTW, since many people don't seem to be aware of this: If you have your own domain, you can get informed by haveibeenpwned automatically if any mail address from that domain is in a breach. All that is required is that you're reachable on that domain through an address like 'postmaster'. This feature can be found under 'domain search'. Since I use a new address for pretty much anything this is very handy.

I have a large list of unique emails to test, but they are not from a domain I control. It seems that I can test these through the API, but is there any simpler way? I tried obvious things like putting a list of comma-separated email addresses in the search form, but it doesn't work.

Re: The unattributable “db8151dd” data breach

#25
post #2

For the people that use unique per-merchant e-mail addresses (like someone+amazon@...), could you try some of those aliases on HaveIBeenPwned and see which ones come up in this breach? That might shed some light onto its origin.

I use the format you mention for almost everything, but my email address in this breach is one I haven't use in something like ten years.

Re: The unattributable “db8151dd” data breach

#26
post #2

For the people that use unique per-merchant e-mail addresses (like someone+amazon@...), could you try some of those aliases on HaveIBeenPwned and see which ones come up in this breach? That might shed some light onto its origin.

I am listed, but it's an address that was never used to register or subscribe to anything online. It's also under a year old. It must've been vacuumed up from other people's contact or email data.

Or from the email provider, if it's not your own server.

I know that e.g. GMX has had a leak at some point (or sold data), as an email I created there ages ago was used in phishing. Okay, that's lame, but they've also used the fake name I had given to GMX, spelled perfectly. I've never used that name anywhere when signing up, so it must come from the database.

Re: The unattributable “db8151dd” data breach

#27
Could it be Google+? 3 of 3 my Gmail addresses associated with their profile in some way were on it. Two of it I might have used to register a domain, but the last one I used for G+ and one other website only and none of any friends know this. Also I'm not in US or have US background, can't be from American friends' phones or retailer CRM.

Re: The unattributable “db8151dd” data breach

#28

> Email addresses, Job titles, Names, Phone numbers, Physical addresses, Social media profiles I just got the email notification from HIBP (Have I Been Pwned) a few minutes ago [1], but I am not worried about the compromised data because 1) my personal email address, job title and phone number are all visible in my resume which is publicly available in my website, I actually encourage people —mostly tech recruiters—…

> Email addresses, Job titles, Names, Phone numbers, Physical addresses, Social media profiles

Probably these can have a different impact if your threat model is a bit different (money, status, living area, position held, etc).

Reminds me the story about an investigative reporter known in these parts, who was swatted: https://krebsonsecurity.com/2013/03/the-world-has-no-room-fo...

or received a drug package from an investigated person, basically it was a trap: https://krebsonsecurity.com/2015/10/hacker-who-sent-me-heroi...

The journalist knew about this and informed the police beforehand. Happy end.

To add a little more, I have seen people posting on social media answers to posts like "your favorite car, your place of birth, name of mother, name of pet". Guess who uses those words for similar secret questions?

Some personal identifiable information can be used to fabricate fake IDs, for various purposes.

And if we have a linked graph with all the personal, job, address, interacted people, geo-places, etc, it can get creepy (sounds like Facebook, but much more open).

Not saying we all should get paranoid, but leaked data could be used in different ways.

Re: The unattributable “db8151dd” data breach

#29
post #11

Earlier quoted context omitted.

BTW, since many people don't seem to be aware of this: If you have your own domain, you can get informed by haveibeenpwned automatically if any mail address from that domain is in a breach. All that is required is that you're reachable on that domain through an address like 'postmaster'. This feature can be found under 'domain search'. Since I use a new address for pretty much anything this is very handy.

I have a large list of unique emails to test, but they are not from a domain I control. It seems that I can test these through the API, but is there any simpler way? I tried obvious things like putting a list of comma-separated email addresses in the search form, but it doesn't work.

Kinda lets adversaries figure which account used which password from which breach and until which point

Re: The unattributable “db8151dd” data breach

#30
> Why load it at all? Because every single time I ask about whether I should add data from an unattributable source, the answer is an overwhelming "yes"

To be fair, you’re asking your followers on twitter. That’s as biased as you can have, I would be really surprised if the majority would say no.

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