Information on approximately 73 million current and old ATs&T customers were recently posted to the dark web in a data breach, the carrier confirmed Saturday.
“in&T determined that AT.&T Data-specific fields were included in a dataset published on the dark web approximately two weeks ago,” the Dallas-based company said in a statement.
in&T said the affected data sets appear to date back to 2019 and earlier, impacting approximately 7.6 million current customers and approximately 65.4 million former account holders.
The dataset included personal information such as social security number, AT, etc.&T said.It is unclear whether the data is from AT&T or one of its vendors, the company said.
BARCELONA, SPAIN – FEBRUARY 27: Participants are seen walking past the AT&T stand during Day 1 of Mobile World Congress 2023 held at Fira Barcelona on February 27, 2023 in Barcelona, Spain. . (Photo by Joan Cros Garcia – Corbis/Getty Images)
Joan Cross Garcia – Corbis/Getty Images
“in&T has launched a robust investigation supported by internal and external cybersecurity experts,” the company said.
In a memo to customers, the company said that the “number” of A.T.&T’s passcodes were compromised and the passcodes of all affected current customers have been reset.
“Additionally, we plan to contact current and former account holders whose sensitive personal information was compromised,” the company said.
The compromised data does not appear to include personal financial information or call history, AT&T said.
TechCrunch reported that AT has been notified.&T announced Monday that the leaked data contained encrypted passcodes that were easy to crack.
This isn’t the first time the company has faced problems this year. In February, power outages temporarily disrupted cell phone service for tens of thousands of customers in the United States. The network outage was caused by a software update, the company announced at the time.
