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AT&T Data Breach Class Action Lawsuit Investigation

by | Mar 31, 2024 | Class Action

Markovits, Stock & DeMarco, LLC, a law firm experienced in data breach class action litigation, is investigating claims on behalf of victims of a large data breach involving data entrusted to AT&T. 

AT&T, one of the largest telecommunications firms in the world, announced a massive data breach that affected nearly 73 million current and former customers. If you receive a notice of data breach letter from AT&T please contact us as soon as possible so we can explain your legal rights in response to the data breach. 

What Happened?

AT&T suffered a major data breach when a huge number of AT&T records, including encrypted passwords, were published on the Dark Web.  AT&T recently issued a response stating, “AT&T has launched a robust investigation supported by internal and external cybersecurity experts. 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 approximately 65.4 million former account holders.”[1]   In response, AT&T reset the passwords of its 7.6 million current customers.

What Data was Compromised in the AT&T Data Breach?

AT&T disclosed the data breach involves sensitive confidential information, including2:

  • Full Names
  • Social Security Numbers
  • Addresses
  • Dates of Birth
  • Telephone Numbers


What Should I do if I Received Notification that my Personal Information was Included in the AT&T Data Breach

If you would like to have a free, confidential consultation with an attorney to learn more about your rights and potential legal remedies related to the AT&T data breach, please contact Markovits, Stock & DeMarco, LLC attorney Justin C. Walker at (513) 651-3700, email us at [email protected], or submit a Case Evaluation request through the form below.


[1] https://techcrunch.com/2024/03/30/att-reset-account-passcodes-customer-data/