AT&T, Snowflake slide after hacker stole wireless customer data

Shares of Snowflake (SNOW) remain down about 3% to $134.27 and those of AT&T (T) have slid about 1% after the wireless services provider disclosed that it suffered a massive hack of customer data, separate from one reported earlier this year. AT&T said it learned in April that the information was illegally downloaded from a workspace on a third-party cloud platform, which a spokesperson speaking to Bloomberg identified as Snowflake. AT&T has taken steps to close off the illegal access point and the company is working with law enforcement in its efforts to arrest those involved in the incident, the company stated earlier in a regulatory filing. “We understand that at least one person has been apprehended. Based on our investigation, the compromised data includes files containing AT&T records of calls and texts of nearly all of AT&T’s cellular customers, customers of mobile virtual network operators – MVNOs – using AT&T’s wireless network, as well as AT&T’s landline customers who interacted with those cellular numbers between May 1, 2022 – October 31, 2022. The compromised data also includes records from January 2, 2023, for a very small number of customers… While the data does not include customer names, there are often ways, using publicly available online tools, to find the name associated with a specific telephone number. At this time, we do not believe that the data is publicly available,” AT&T stated. An FCC spokesperson, Jonathan Uriarte, told Bloomberg: “The agency has an ongoing investigation and is coordinating with our law enforcement partners.” The FBI said in a statement that they had been contacted by AT&T about the incident, and the parties agreed to delay disclosure because of potential national security and public safety concerns, Bloomberg has noted.