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T-Mobile hit with data breach affecting prepaid customer information

The carrier hasn’t provided an estimate of how many customers were affected

Photo (c) franckreporter - Getty Images
T-Mobile has disclosed that it recently suffered a data breach that allowed a malicious party to access the account information of some of its prepaid customers. The wireless carrier said it “quickly corrected” the security issue after discovering it. 

“Our Cybersecurity team discovered and shut down malicious, unauthorized access to some information related to your T-Mobile prepaid wireless account,” the company said on its customer support page. “We promptly reported this to authorities.” 

The carrier noted that no financial data or social security numbers were accessed in the breach, and no passwords were compromised. However, information associated with users’ prepaid wireless accounts -- including names and billing addresses -- was accessed. Other personal data that was revealed included phone numbers, account numbers, rate plans, and add-on features (such as an international calling add-ons). 

Affected customers notified

The company said it’s started the process of notifying all affected customers. Users who received a notification are advised to update their PIN on their T-Mobile account.  

“We take the security of your information very seriously and have a number of safeguards in place to protect your personal information from unauthorized access,” T-Mobile said. “We truly regret that this incident occurred and apologize for any inconvenience this has caused you.”

T-Mobile said some customers whose information was compromised may not have received a notification because their contact information is out of date. Customers who are worried that they may fall under this category are advised to contact T-Mobile’s customer support department for further assistance. 

“If you are a T-Mobile customer, you can reach us by dialing 611 from your T-Mobile phone or by calling 1-800-T-MOBILE from any phone,” the company said. 

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