Editor’s Note: This article has been updated to reflect new information provided by an AT&T spokesperson regarding the composition and context of the data involved in the 2025 leak. The re-emergence of AT&T customer data in dark web marketplaces this June continues to illustrate how legacy breaches can resurface as renewed threats. However, earlier descriptions
Alan N. Sutin is Chair of the firm's Technology, Media & Telecommunications Practice and Senior Chair of the Global Intellectual Property & Technology Practice. An