Jan 20, 2023 14:00:00

About 37 million customer data are stolen from the world's leading mobile carrier 'T-Mobile'

by

Mike Mozart

In the summer of 2021, the communication carrier T-Mobile , which was reported to have leaked user information for 100 million people, found that customer data for 37 million people was newly leaked. T-Mobile says, `` Sensitive personal data such as payment information and passwords are not stolen, but there is a risk of unauthorized access by leaked personal data.''

T‑Mobile Informing Impacted Customers about Unauthorized Activity ‑ T‑Mobile Newsroom
https://www.t-mobile.com/news/business/customer-information

Bloomberg - Are you a robot?
https://www.bloomberg.com/news/articles/2023-01-19/t-mobile-tmus-says-hacker-stole-data-for-37-million-customers

T-Mobile reveals data breach impacting 37 million accounts
https://9to5mac.com/2023/01/19/t-mobile-data-breach-customer-info/

T-Mobile says investigating data breach involving 37 mln accounts | Reuters
https://www.reuters.com/technology/t-mobile-says-investigating-data-breach-affecting-37-mln-accounts-2023-01-19/

In a federal filing, T-Mobile said it 'discovered the hack on January 5 and traced the source within one day of discovery to prevent the most sensitive types of data damage. I was able to do it, ”he said. According to T-Mobile, the stolen data included customer names and addresses, emails, phone numbers, account numbers, details of subscribed plans, and particularly sensitive items such as payment information, passwords and social security numbers. It is said that access to highly sensitive data was prevented. In addition, it seems that no damage has been confirmed in the company's network and systems.

'All of the stolen information was of the type commonly used in marketing databases and directories,' T-Mobile said in a statement to customers. In a document filed with the U.S. Securities and Exchange Commission (SEC) , it said, ``Based on our investigations to date, this incident did not directly endanger customer accounts or property.'' It claims that the direct damage caused by the outflow is not large.

Regarding the hackers who stole the data, T-Mobile said, ``While the investigation is still ongoing, the perpetrators appear to have obtained information from a single entry point that provided customer data, and were able to gain access to the company's systems and networks. It doesn't look like it did,' he explained.

T-Mobile has been reported to have leaked the personal information of more than 100 million people in 2021, and as a result of the investigation, the customer data of 47.8 million people has been leaked. In addition, multiple information leaks have been confirmed before 2020. A person who responded to an interview with the Wall Street Journal as a criminal who stole customer data for 47.8 million people by hacking said, 'T-Mobile's security was terrible.'

A hacker who stole 50 million customer data from T-Mobile said about mobile carriers that ``their security is terrible''-GIGAZINE

Jackie Burns-Coven, cyber threat intelligence officer at Chainalysis , a blockchain analysis company headquartered in New York City, told Bloomberg, ``This is not the first time T-Mobile has suffered a data breach. In particular, it is common for victims to be re-victimized.'

In a statement notifying of the incident, T-Mobile said, 'Like any company, we are not immune to this type of criminal activity, but we continue to spend significant sums to strengthen our cybersecurity program. We plan to invest in Shortly after announcing the breach, it was not expected to have a material impact on operations, but reports of the incident sent T-Mobile's stock down 2% in after-hours trading, Bloomberg said. We are reporting.