AT&T data leaked: 73 million customers affected

AT&T has confirmed that the data set leaked on the dark web some two weeks ago does contain “AT&T data-specific fields”.

According to AT&T, the batch includes data of approximately 7.6 million current AT&T account holders and approximately 65.4 million former account holders: full name, email address, mailing address, phone number, social security number, date of birth, AT&T account number and passcode.

“To the best of our knowledge, the compromised data appears to be from 2019 or earlier and does not contain personal financial information or call history,” they added, and urged customers to keep an eye on their account activity and credit reports – just in case.

The data set was leaked two weeks ago on a dark web forum, and seems to be the same data set that had been offered for sale in 2021.

AT&T said at the time that the data did not come from their systems, and still maintains that they don’t “Have evidence of unauthorized access to its systems resulting in exfiltration of the data set,” and that they don’t yet known “Whether the data in those fields originated from AT&T or one of its vendors.”

Affected users will be contacted by the company via email or letter, which means that customers should be probably be also on the lookout for phishing emails posing as AT&T. They can also check whether their data is included in the data set by entering the email they used to create an AT&T account into Have I Been Pwned?

Share this article on social media:

Subscribe to Our Newsletter!
Stay on top of cybersecurity risks, evolving threats and industry news.
This field is for validation purposes and should be left unchanged.

The Latest Cybersecurity News

From major cyberattacks, newly discovered critical vulnerabilities to recommended best practices, read it here first:

Tell us About your Needs
Get an Answer the Same Business Day

Got an urgent request? Call us at 1-877-805-7475 or Book a meeting.

What happens next:

A Vumetric expert will contact you to learn more about your cybersecurity needs and goals.

The project's scope will be defined (Target environment, deadlines, requirements, etc.)

A detailed quote including all-inclusive pricing and statement of work is sent to you.

This field is for validation purposes and should be left unchanged.


Everything You Need to Know

Gain confidence in your future cybersecurity assessments by learning to effectively plan, scope and execute projects.


Enter your Email Address

This field is for validation purposes and should be left unchanged.

* No free email provider (e.g:,, etc.)

This site is registered on as a development site. Switch to a production site key to remove this banner.