AT&T says criminals stole phone records of 'nearly all' customers in data breach
AT&T confirms a data breach affecting 110 million customers, involving phone records and location data from 2022-2023. Collaboration with authorities led to one arrest. Snowflake's breach impacted other companies, stressing the need for enhanced security measures.
Read original articleAT&T confirmed a data breach where cybercriminals stole phone records of "nearly all" customers, affecting around 110 million people. The stolen data includes phone numbers, call and text records, and some location-related data from a six-month period in 2022. Some more recent records from 2023 were also compromised. The breach was linked to cloud data giant Snowflake, with stolen data not containing call or text content but metadata like call durations and interactions. AT&T is working with law enforcement to address the breach and has already apprehended one individual. The FBI, DOJ, and AT&T collaborated to manage the situation, citing potential risks to national security. This incident marks the second security breach for AT&T this year. Snowflake attributed the breach to a cybercriminal group and emphasized the importance of multi-factor authentication. Other companies like Ticketmaster and LendingTree were also affected by data thefts from Snowflake. The stolen data has not been publicly disclosed, and efforts are ongoing to secure affected customers' information.
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Nearly all AT&T cell customers' call and text records exposed
AT&T suffered a data breach exposing call and text records of millions from May to October 2022. No content was revealed, but phone numbers were compromised. AT&T is assisting affected customers.
- Many commenters emphasize the need for stricter data protection laws and harsher penalties for companies that fail to secure customer data.
- There is widespread criticism of AT&T and Snowflake for their poor security practices, with some suggesting that executives should face criminal charges.
- Several comments highlight the potential misuse of the stolen data, including targeted scams and social engineering attacks.
- Some users express frustration over the lack of timely disclosure and transparency from AT&T regarding the breach.
- There are calls for better data management practices, such as deleting old data and using multi-factor authentication to prevent future breaches.
Laws related to data breaches need to have much sharper teeth. Companies are going to do the bare minimum when it comes to securing data as long as breaches have almost no real consequences. Maybe pierce the corporate veil and criminally prosecute those whose negligence made this possible. Maybe have fines that are so massive that company leadership and stockholders face real consequences.
So what is Snowflake normally doing with all that AT&T data? Redistributing it to "marketing partners"? Apparently. Snowflake's mission statement, from their web site:
"Our mission is to break down data silos, overcome complexity and enable secure data collaboration between publishers, advertisers and the essential technologies that support them."
So this was not, apparently, a break-in to the operational side of AT&T. Someone unauthorized got hold of data they were already selling to marketers. Is that correct?
Given the nature of the data in the database and the platform it was stored in, it seems extremely likely this data was not meant to be used internally by AT&T but was instead meant to be used externally by either a 3rd party partner (like advertisers and consumer analytics partners) or a government agency.
In other words, if it were my data in this datastore, I’d consider my data as already having been “leaked” when it went into the store - the issue here appears to be that this data was “leaked” to the wrong people from the perspective of AT&T and the FBI.
There's really no reason why any service providers should save this stuff in the first place, and it isn't hard to fix with legislation. Just make it illegal to even keep.
[1] https://curia.europa.eu/juris/document/document.jsf?text=&do...
The fact we don't have decent legislation to materially punish incompetent organizations is beyond absurd.
Security is not a concern. There is no real incentive to change the status quo. Make them pay for monitoring indefinitely .
https://techcrunch.com/2024/07/12/att-phone-records-stolen-d...
When no one is on the hook for secure practices, like enabling MFA on your effin data stores that contain massive amounts of customer PII, this is the result. Not even an apology, just report it and move on. woops! those gosh darned cyber criminals.
It is high time for the US to have a privacy law with real teeth, and to enforce it with vigour.
"Snowflake allows its corporate customers, like tech companies and telcos, to analyze huge amounts of customer data in the cloud. It’s not clear for what reason AT&T was storing customer data in Snowflake, and the spokesperson would not say."
Finally journalists are asking the question why customer data must be stored with third party cloud providers. AT&T is a long way from Bell Labs, shame on them.
Any servers or admins which need to talk to the data store should instead use a private overlay (2) network.
Any users (likely just remote admins) should do the same.
(1) Same root cause as 99% of breaches and yet it is too often swept under the rug while we focus on the infinite # of proximate causes
(2) Software, not private circuits.
https://www.usa.gov/credit-freeze
You can unfreeze through an app whenever you want/need to.
- Records downloaded from Snowflake cloud platform
- "AT&T will notify 110 million AT&T customers"
- Compromised data includes customer phone numbers ("for 77m customers"), metadata (but not actual content or timestamp of calls and messages), and location-related data. Not SSNs or DOBs. Mostly during a six-month period 5/1-10/31/2022, but more recent records from 1/2/2023 for a smaller but unspecified number of customers. TechCrunch [1] has more details including Mandiant's response, the name and suspects location of the cybercriminal group
[1]: https://techcrunch.com/2024/07/12/att-phone-records-stolen-d...
I wonder if Congress manages to summon TikTok-like levels of anger on regulating this one.
These records should have been deleted at the latest at the point where they're no longer relevant for billing. (Which also means that for customers with unlimited calling/texting, there shouldn't be any records in the first place.)
All i can think of is billing for a fraction of plans from the early 2000s who still pay per min/per text. Or maybe for capacity metrics but even then you only need the overall data point not the actual records once collaborated.
What's the US law for keeping data as long as its relevant and needed?
Still not good, but headline feels clickbait if I think my text messages leaked
I've been wondering this since the Office of Personnel breach[1] back in 2015.
[1] https://en.m.wikipedia.org/wiki/Office_of_Personnel_Manageme...
As far as this breach goes, I think it just confirms my gut feel that Snowflake are heading to the wood chipper.
If we don't hold companies accountable for keeping far more access and retention than should be legal, and securing their systems poorly, this situation will never get better
1. Preventing data breaches
2. Properly anonymizing aggregated personally identifiable data
3. Having and using a secure ID and verification system
Does anybody have any advice? Proving damages means showing actual monetary harm.
Well, now I feel better. 8^)
how can we keep such accumulations of sensitive data from arising in the first place? only countries that figure it out are likely to survive the turbulent coming decades
In other words, your phone number and name is likely in a public record somewhere. It's not that private.
The info leak should not have happened but in the grand scheme of things it's not that big a deal. "The content of the calls and messages was not compromised." The worst it does is reveal who has been sending messages to or calling each other.
> It’s not clear for what reason AT&T was storing customer data in Snowflake, and the spokesperson would not say.
[1] https://techcrunch.com/2024/07/12/att-phone-records-stolen-d...
If wiretapping laws didn't exist then most of this data would not be justified to exist. Flat-rate billing doesn't need to keep track of this information. Even usage-based plans could keep cumulative records rather than individual ones, or at least delete them at the end of a billing period.
Where there is a trough, pigs gather.
I'm an AT&T customer, and in my case I don't have a risk, but I can imagine this info could be very handy for divorce, custody, and corporate IP lawsuits. So worse than it might look to ordinary folks.
Why was this not disclosed on AT&T’s earnings call on April 24? At least someone will get compensated for the breach, although it’ll be the lawyers for the class action lawsuit that’s about to hit instead of the customers that got their information stolen.
Shouldn't data like this be stored completely independently of the Internet? Yes, I realize that does not guarantee it is secure since there has to be some point of access. On the other hand, it would reduce opportunities for people to breech the databases.
And this is why consumers will continue to see their information compromised by companies who collect and retain more data than they need and then fail to invest the time and resources to protect it.
https://www.snowflake.com/en/customers/all-customers/case-st...
My guess is that the tech leaders a AT&T are going to have sore wrists for a few minutes because of this.
Such a law would seriously impact current practices of the majority of IT firms, including small app developers, which is why we see little push from silicon valley for such changes.
And is that going to change?
WTF does this even mean?
The cloud employees downloaded it? If its so sensitive, why wouldn't this be heavily e2e encrypted?
I guess maybe a cop would still need a warrant to use the data, but what about civil court cases?
A lot of information can be derived from analysis of call records. If this information becomes public, it could be disastrous.
- [security expert] "This [logs without timestamps] isn’t one of their main databases; it is metadata on who is contacting who. Its only real use is to know who is contacting whom and how many times."
- [commenter] "I have a theory that this call log was being used for a national security investigation. Otherwise why would this rise to the level of public safety/national security exemption?" [with two DOJ-approved 1-month delays for disclosure]
So, someone set up a separate Snowflake instance with mostly May-Oct 2022 AT&T data (90% former customers) apparently for that purpose. And left it up. Will anyone in Congress (e.g. Sen Ron Wyden) ask who did and why? (Another commenter on HN pointed out that Roe v Wade was overturned 6/2022, presumably that was not the intent of the original national-security investigation, but there's a potential for privacy abuse by the hackers' customers beyond everyday spam)
- In early 2023, Snowflake set up a unit especially for Telco data. But when you read the blurb (below), this product is not aimed at the telco's use-case; coincidentally this was also around the time Snowflake was touting integration with GenAI.
"Unlocking the Value of Telecom Data: Why It’s Time to Act" https://www.snowflake.com/blog/telecom-data-partnerships/
"Telecoms are the connecting tissue of the modern economy. They run everything... growing importance... hyperconnectivity.
What makes telecom service providers unique is that they have access to consumer location data. For most other industries, a consumer can go into their phone’s privacy settings and turn off the location access in the smartphone app. But in the world of telecom, as long as the phone is connected to a network, the telecom provider can use triangulation to find the approximate location of a consumer. This is why there is an emerging trend of companies [which ones?] building partnerships with telecoms to power use cases across multiple industries from competitor intelligence, alternate credit scoring, hyper-targeted marketing and more.
... Yet, despite the importance of telecommunications for society and in connecting industries, network operators are not yet fully embracing the value of the data they have at their fingertips"
But the value of this data (90% former customers) was clearly not to the telco itself... so who is the unnamed partnership and who is the end-customer? And was one of Snowflake's AI partners involved?
There’s going to be a lot of “dark compute” once we throw these lazy assholes out.
Speaking for myself, I’m thinking of what the economics look like when HBM is abundant.
I see lots of outrage at the companies and why isn't the government doing more to punish them and how do I get compensated ...
But, I feel like everyone is blaming the victim. Is it the home owners fault when someone breaks in and steals stuff?
Where's the outrage at the hackers breaking into these accounts? Where's the "why aren't the governments tracking these people down?" Why is no one demanding that the hackers be brought to justice?
AT&T said it launched an investigation, hired cybersecurity experts and took steps to close the “illegal access point.””
That's pretty rich: “it wasn't misconfigured, it was just illegally open, and now we're closing it”.
I have nearly given up; like smoking, it will be decades before the harms are understood. We have to wait for your neighbour's brother to have died in a targetted political killing, because someone didn't like his Substack and borrowed the number and likeness of a friend; for his daughter's credit score to have been crushed by an anti-abortioneer who borrowed her face and likeness and number knew her first-grade teacher; for his son to die a death of despair, after making the wrong friends, and getting doxxed along with the rest of them.
This should be a five-foot headline moment. But no; CNN will lead with Biden-mumbles or Trump-grumbles.
How is it that the things that are killing us --- inequality, climate change, privacy collapse -- all have this same shape? Hamlets, all of us.
Then there is no data left to breach.
Instead develop systems to audit the usage of that blockchain and send to jail/military anyone who attempts to use that information in an unauthorized manner.
- guessing it was some GenAI startup looking into consumer tracking, alternate credit scoring, surveillance or other national-security use-case.
- Very unusually, the DOJ ordered two ~month-long "delay periods" in disclosure: ("The Justice Department determined on May 9 and again on June 5 that a delay in providing public disclosure was warranted"). Yet this didn't happen for Ticketmaster or MOVEit breaches revealed around the same time. "Cybersecurity delay period requests" is a new power quietly authorized by the DOJ+SEC+FBI, 18 Dec 2023 [0]. Note that [1] emphasizes this as "Corporate Alert - guidance for delay requests [on SEC 8-K]". Might Congress already have known/suspected, when it authorized the cybersecurity delay request powers, of the Snowflake/AT&T breach? Either way, whoever is involved seems to have very powerful friends. Also, the big FISA renewal vote was Apr 19 2024 [2].
- Seems the cloud instance was set up the same time GPT-4 was released (March 2023), also when Snowflake set up a Telco business unit [3] ("Location data... Alternate credit scoring, hyper-targeted marketing and more... an emerging trend of companies building partnerships with telecoms to power use cases across multiple industries"). This product is not aimed at the telcos' use-cases, but at new revenue streams. (Who might the unnamed Snowflake AI partner(s) be?)
- They set up the Snowflake instance with AT&T/MVNO customers with timestamps removed, but with location data, yet the phone numbers not obscured or removed. Doesn't sound like "internal analytics" or "competitor analysis". What sorts of end-users want to pay for the entire social-graph of 110m, regardless whether those customers never make a phone call again? [EDIT: I confused the details of this AT&T breach with the other (2019) one disclosed on 3/2024: 77m AT&T/MVNO customers, 90% of them former customers]
[0]: "FBI Guidance to Victims of Cyber Incidents on SEC Reporting Requirements: FBI Policy Notice Summary" https://www.fbi.gov/investigate/cyber/fbi-guidance-to-victim...
[1]: "US Corporate Alert - DOJ, FBI, and SEC provide guidance for delay requests relating to disclosure of cybersecurity incidents under form 8-K" https://www.klgates.com/DOJ-FBI-and-SEC-Provide-Guidance-for...
[2]: US House approves FISA renewal – warrantless surveillance and all https://news.ycombinator.com/item?id=40041784
[3]: Snowflake cloud Telco unit, 4/2023: "Unlocking the Value of Telecom Data: Why It’s Time to Act" https://www.snowflake.com/blog/telecom-data-partnerships/
It's because there are almost no consequences to them if they lose the customer data, beyond a day or two of bad press. If they faced significant fines, fines that get worse the more sensitive the data is, then they'd have an incentive to do better.
- Records downloaded from Snowflake cloud platform
- AT&T will notify 110 million AT&T customers
- Compromised data includes customer phone numbers, metadata (but not actual content or timestamp of calls and messages), and location-related data. Not SSNs or DOBs. Mostly during a six-month period 5/1-10/31/2022, but more recent records from 1/2/2023 for a smaller but unspecified number of customers. TechCrunch report has more details including Mandiant's response, the name and suspects location of the cybercriminal group
I wonder if Congress manages to summon TikTok-like levels of anger on regulating this one.
(I was going to link to the 14 other submissions but the list is too long and it'd just come across as obnoxious.)
AT&T customer? Prepare for phone calls / text messages from your most frequent contacts saying "I got stranded / I'm Officer Blahblahman helping your friend get home... please send gift card / venmo"
It's only metadata...
> Protecting your data is one of our top priorities. We have confirmed the affected access point has been secured.
> We hold ourselves to a high standard and commit to delivering the experience that you deserve. We constantly evaluate and enhance our security to address changing cybersecurity threats and work to create a secure environment for you. We invest in our network’s security using a broad array of resources including people, capital, and innovative technology advancements.
I hope there's an enormous fine for this kind of negligence
Edward Snowden published several slide decks about it a few years ago, before he defected to Russia.
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Snowflake breach snowballs as more victims, perps, come forward
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Ticketmaster has begun warning customers about data breach
Ticketmaster notifies customers of a data breach involving personal information theft. 1.3 terabytes of data were compromised and sold on the dark web. Snowflake denies involvement. Ticketmaster enhances security measures.
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Nearly all AT&T cell customers' call and text records exposed
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