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One of the largest T-Mobile authorized retailers had 90GB of info leaked, including customer data

Published: Sep 23, 2023, 8:18 AM

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One of the largest T-Mobile authorized retailers had 90GB of info leaked, including customer data

T-Mobile is often in the news for the wrong reasons. Yesterday, a glitch in the company's system showed personal customer information to the wrong account holders. And now, there is fear that freshly leaked data that is available online could help bad actors gain access to sensitive information.

In T-Mobile's defense, the carrier cannot be blamed for the latest breach. Apparently, a third-party retailer called Connectivity Source had more than 90GB of its data leaked and put on the hacking forum BreachForums. Connectivity Source is one of the largest T-Mobile authorized retailers, with hundreds of stores across the United States.

T-Mobile has been breached (again). Data has been exfiltrated and it is being shared online (again)

This is T-Mobile's 8th breach since 2018

This is the 3rd breach this year

This breach is 90GB of exfiltrated employee PII. This is the 2nd time T-Mobile employee PII was leaked
— vx-underground (@vxunderground) September 22, 2023

Previously, it was thought that the said breach included T-Mobile employee data but the carrier has confirmed that that's not the case, per The Mobile Report.

There has not been a T-Mobile data breach. The data being referred to online is believed to be related to an independently owned authorized retailer from their incident earlier this year. T-Mobile employee data was not exposed." - T-Mobile

The original source of the leak said that the leaked information included employee information such as names, IDs, email addresses, login IDs, and Social Security Numbers. A second source said that the leaked data also includes sales data, support calls with T-Mobile customers, employee credentials, and unspecified customer data.

Connectivity Source had revealed in May that it suffered a breach in April and hackers walked away with data on current and former employees. It's possible that the information that was stolen at that time has been put on the internet only now and the company has not been a victim of another attack.

In all, 17,835 current and previous employees were affected, so the breadth of the attack was not too large. Still, it's not an insignificant number and the stolen data might prove to be very valuable for bad actors. That's because it could be used to gain access to Connectivity Source's internal systems or help hackers carry out SIM swap attacks.

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Anam Hamid is a computer scientist turned tech journalist who has a keen interest in the tech world, with a particular focus on smartphones and tablets. She has previously written for Android Headlines and has also been a ghostwriter for several tech and car publications. Anam is not a tech hoarder and believes in using her gadgets for as long as possible. She is concerned about smartphone addiction and its impact on future generations, but she also appreciates the convenience that phones have brought into our lives. Anam is excited about technological advancements like folding screens and under-display sensors, and she often wonders about the future of technology. She values the overall experience of a device more than its individual specs and admires companies that deliver durable, high-quality products. In her free time, Anam enjoys reading, scrolling through Reddit and Instagram, and occasionally refreshing her programming skills through tutorials.

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One of the largest T-Mobile authorized retailers had 90GB of info leaked, including customer data

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