Tens of millions of AT&T’s records, including tax IDs, names, and IP addresses, were leaked online, attackers have claimed. However, researchers believe there’s not enough evidence to support the claim.
The supposed AT&T data breach details were posted on a well-known hacker forum. Attackers claim the dataset includes a whopping 31 million sensitive user records, ranging from full names to customer IP addresses.
We’ve reached out to AT&T for a comment and will update this article once we receive a response.
The Cybernews research team investigated the data sample that the attackers included. According to the team, the sample includes:
- Full customer names
- Genders
- Dates of birth
- Tax IDs
- Device IDs
- Cookie IDs
- IP addresses
- Full addresses
- Phone numbers
- Email addresses
However, researchers note that the sample only includes the following details from a single person, making it impossible to verify whether the full database actually contains 31 million records. Assuming that every user has the same number of details exposed, over 3 million AT&T customers may have had their personal details revealed.
“If there are actually 31 million lines of this kind of information, that's quite a serious breach of user privacy. While we can't really confirm the breach without a proper sample file, the attacker was pretty active in May, with tens of posts with all sorts of data,”
researchers said.
“If there are actually 31 million lines of this kind of information, that's quite a serious breach of user privacy. While we can't really confirm the breach without a proper sample file, the attacker was pretty active in May, with tens of posts with all sorts of data,” our researchers said.
If confirmed, the AT&T data breach would pose serious cybersecurity and privacy risks to impacted individuals. There’s enough data for financial fraud, account takeovers, and social engineering attacks. The combinations of data points included in the post enable cybercrooks to impersonate victims, open fraudulent accounts, and even bypass security measures.
AT&T is one of the world’s largest telecommunications companies, with yearly revenue exceeding $122 billion. The company’s vast size puts a massive target on its back, which hackers don’t fail to notice. For example, last April, AT&T said that its customer data was illegally downloaded from a third-party cloud platform, with nearly all customers being affected.
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