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AT&T Notifying Customers About Massive Data Leak

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Apr 12, 2001
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AT&T this week is letting customers and former customers know about a major data leak, and it is sending out emails and resetting passcodes to prevent unauthorized account access.

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7.6 million customers and 65.4 million former customers have had their passcodes stolen and have had sensitive data leaked. AT&T claims that there was no unauthorized access to its systems resulting in the theft of the data set, with the information obtained several years ago.

Back in 2021, a hacking group said that it had stolen information on 70 million AT&T customers. AT&T at the time said that it had not suffered a breach, and the company still insists that the data did not come from its systems. Customer information leaked includes names, addresses, birth dates, AT&T account numbers, phone numbers, email addresses, and social security numbers, along with passcodes.

The data was not made public until March 2024, but now that it is out in the wild, AT&T has initiated passcode resets and says that it is working with external cybersecurity experts to further analyze the situation.

The company says leaked data does not include financial information or call history, and it will be providing complimentary identity theft and credit monitoring services for those who had their personal information compromised.
AT&T has determined that AT&T data-specific fields were contained in a data set released on the dark web. While AT&T has made this determination, it is not yet known whether the data in those fields originated from AT&T or one of its vendors.

With respect to the balance of the data set, which includes personal information such as social security numbers, the source of the data is still being assessed. Based on our preliminary analysis, the data set appears to be from 2019 or earlier, impacting approximately 7.6 million current AT&T account holders and 65.4 million former account holders. Currently, AT&T does not have evidence of unauthorized access to its systems resulting in theft of the data set.
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Impacted current and former customers will be receiving a letter or an email from AT&T.

Article Link: AT&T Notifying Customers About Massive Data Leak
 
Article Link
https://www.macrumors.com/2024/04/01/att-data-leak-notifications/
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I wonder if this is why I had to fight to get a collections account removed from my credit report bc someone used my social and info to get ATT U Verse....
 
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Chuckeee said:
The issue is AT&T did not do anything until the data appear in the wild. That is deplorable.
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To be fair - company usually don’t know (at all) their data leaked until they appear in the wild. That’s a fact.

I know it‘s more cool to bash corporate for not imforming about older data leak sooner - but it really usually goes unnoticed. And if the company finds the hole and patch it, they usually assume it was not used and no data leaked.

The IDS is usually non-existent or not good enough to catch data leak before it appears in the wild.

tl;dr AT&T probably did not know before it appeared in the wild. And it’s not unusual. It’s rather common in such situations.

EDIT: My bad. The article states, AT&T was informed back in the 2021:
Back in 2021, a hacking group said that it had stolen information on 70 million AT&T customers. AT&T at the time said that it had not suffered a breach, and the company still insists that the data did not come from its systems.
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this just plain sucks, something in our legal system needs to change ...
For many year now, every morning, first thing, I check all my bank accounts as well as credit karma for any unusual activities, might take me 5 minutes but worth it to me
 
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There should be a law preventing these carriers from requiring checking account info. to pay your bill so you don’t have to incur a fee. It’s just a matter of time before all of these big companies are hacked. The less relevant information available the better.
 
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Chuckeee said:
The issue is AT&T did not do anything until the data appear in the wild. That is deplorable.
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This is the main issue. There are state laws that require notice when they know or have reason to know of a data breach. Some states set a time limit, usually a number of days. How is AT&T not being sued by state AGs right now for violating these laws? Or possibly even worse, does violating these laws open AT&T up to personal liability for downstream effects of the breach?
 
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hacky said:
MacRumors said:
Back in 2021, a hacking group said that it had stolen information on 70 million AT&T customers. AT&T at the time said that it had not suffered a breach, and the company still insists that the data did not come from its systems.
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To be fair - company usually don’t know (at all) their data leaked until they appear in the wild. That’s a fact.
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did you read this part?
and if they still claim its not from their systems - who the hell are they providing this kind of data to?????
 
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So a few things come to mind...

1) Being able to say "wasn't us" or "wasn't our fault" with no proof of either it just plain wrong, the data must have come from either AT&T or an advertising partner.
1a) If it was one of your "partners" you shared sold user information with to, then indeed you should be liable. Data sharing should be opt-in, not opt-out. Most opt-out screens clearly state that you cannot opt out of all sharing.
2) Customers will get a measly 1 year of credit monitoring. If it is proven this is AT&Ts, or a partners fault, then customers should get a lifetime of monitoring/protection for a breech that extensive.
3) Please, lets welcome alt-stores with bargain basement payment processors into our iOS lives, surely nothing bad will happen.
4) Something like this should result in the CEO, CIO being immediately terminated along with anyone that was involved in sharing data like that with "partners". Then criminal proceedings should commence looking for gross negligence.
 
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hacky said:
To be fair - company usually don’t know (at all) their data leaked until they appear in the wild. That’s a fact.
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But the article stated that the hackers announced they hacked the data in 2021. AT&T just denied it happened until the data appeared in the wild in March 2024. So AT&T did know about this data breach for 3 years
 
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jz0309 said:
did you read this part?
and if they still claim its not from their systems - who the hell are they providing this kind of data to?????
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Chuckeee said:
But the article stated that the hackers announced they hacked the data in 2021. AT&T just denied it happened until the data appeared in the wild in March 2024. So AT&T did know about this data breach for 3 years
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My bad. Yeah, that’s a sad story if it comes from that leak. Denial is quite dumb in such situation.
 
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