T-Mobile USA is once again in the headlines for yet another breach involving customer data – making this its second data breach in 2023 alone.

Bleeping Computer reported that T-Mobile had discovered that attackers had gained access to the personal information of hundreds of customers for more than a month, starting from late February 2023.

This is the second breach for T-Mobile this year, after it admitted in January that attackers had stolen data on 37 million customers, including billing addresses, phone numbers, email, dates of birth and T-Mobile account numbers.