Lieff Cabraser is investigating AT&T on behalf of non-AT&T subscribers who called or texted with AT&T subscribers and suffered harm as a result of a vast AT&T data breach.

Earlier this year, AT&T suffered a massive data breach affecting “nearly all” of its more than 100 million subscribers. This data breach not only harmed AT&T subscribers, but also every non-AT&T subscriber who called or texted with an AT&T subscriber as well. Reportedly, AT&T was targeted because it failed to employ basic cybersecurity measures to protect its data about who its subscribers communicated with, including non-AT&T subscribers.

In July 2024, AT&T acknowledged the breach to the federal authorities, and began notifying its customers of the breach. According to AT&T, the stolen information includes “phone call and text message records,” including phone numbers subscribers have interacted with. Hackers have now begun listing the call and text message data they stole for sale on the dark web.

Lieff Cabraser’s nationally-recognized Data Privacy practice group is interested in speaking with Verizon, T-Mobile, and other non-AT&T subscribers who called or texted with AT&T subscribers between May 1, 2022 and October 31, 2022. If you believe you communicated with an AT&T subscribers during that time period, please use the form on this page to reach out to an experienced data privacy lawyer at Lieff Cabraser today to learn more about your rights and potential recovery. There is no charge or obligation for our review of your case, and the information you provide will help us hold AT&T accountable for its actions.

Lieff Cabraser’s Cybersecurity and Data Privacy practice group is committed to ensuring that the fundamental right to privacy is respected and maintained as technology evolves to grow ever more powerful, pervasive, and intrusive.

Our Cybersecurity attorneys have the experience and technical expertise necessary to successfully litigate a comprehensive range of privacy claims. We represent individuals in precedent-setting cases against powerful technology, social media, healthcare, and entertainment companies, as we continue to reaffirm and enforce all the privacy protections the law provides to keep secure the most sensitive personal information of citizens in the U.S. and around the world.