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AT&T says criminals stole phone records of 'nearly all' customers in data breach

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Re: AT&T says criminals stole phone records of 'nearly all' customers in data breach

#311
post #288

Earlier quoted context omitted.

How would cross-referencing be useful? You’d just find out what services people use?

If GitHub always uses the same number(s) for 2fa and there are outgoing texts to your number then the connection is obvious. I’ve read that sim jacking is somewhat common and this would be a good data point.

So, just for discovering what services people use?

Re: AT&T says criminals stole phone records of 'nearly all' customers in data breach

#312
I might be lone wolf here but I kind feel pity for ATT I dont know why they are solely getting all the loathe here . actual incident occurred on public cloud provider who had not provided secure tools practice to their customer. so in this customer getting blamed for buying service cloud provider lack of best practices.

Re: AT&T says criminals stole phone records of 'nearly all' customers in data breach

#313
Some new news in the article and comment:

- [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?

Re: AT&T says criminals stole phone records of 'nearly all' customers in data breach

#315

Earlier quoted context omitted.

I agree. This is precisely why breaches keep happening and will keep happening. It cost money to implement security. There's no cost benefit to spending that time and money since there are no consequences. Businesses do not spend money unless it will make them money or save them money. There needs to be a hefty federal fine on a per-affected-user basis for data breaches. Also a federal fine for each day a breach is u…

> It cost money to implement security. Yes, but no amount of money will stop the data in a big database being stolen by someone sufficiently motivated to steal it. It's just bits on someone's disk. The only true solution is to not create the database. But then what would all the data scientists and their MBA masters so with their time?

in this case it’s pretty tough because the phone company does need this metadata just to bill people. so they should protect it properly.

Re: AT&T says criminals stole phone records of 'nearly all' customers in data breach

#317

It's ok everyone! Protecting our data is one of AT&T's top priorities. > 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…

Not their fault. Snowflake was breached. And the data was with Snowflake.

Snowflake wasn't breached. A Snowflake database belonging to AT&T was breached.

Re: AT&T says criminals stole phone records of 'nearly all' customers in data breach

#318

Freeze your credit people! It's super easy. It's not a perfect fix but it's so trivial to do and it will help. https://www.usa.gov/credit-freeze You can unfreeze through an app whenever you want/need to.

i don’t think credit freezing matters too much in this case because the leak wasn’t tied to SSN, name, etc. that would be used for identity theft. it was phone call and location data. much worse for privacy but less useful for financial fraud.

Re: AT&T says criminals stole phone records of 'nearly all' customers in data breach

#319
The root cause (1) is the data store should not have been available on the underlay network. Anything connected to an underlay network is a ticking time bomb.

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.

Re: AT&T says criminals stole phone records of 'nearly all' customers in data breach

#320
post #274

My first question is: why was the data being stored by a third party in the first place? 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.

Because they don't care about actual information security, they care about "national security." They optimize for giving all branches of US law enforcement, from the federal to state to local level, access to 7 years of historical data whenever they claim they need it.

I don't buy into that theory, at lrast in this case. There are other ways to hand-off data when it is legally requested. On the other hand, such data would be valuable to foreign actors who do not have a legal means of accessing such data. It would require a high degree of incompetence to sacrifice national security in the name of convenience.
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