The company, which has more than 110 million subscribers, said it identified malicious activity on January 5 and contained it within a day, adding that no sensitive data such as financial information was compromised.
, the No.3 US wireless carrier by subscribers, said it was investigating a data breach involving 37 million postpaid and prepaid accounts and that it could incur significant costs related to the incident.
The company, which has more than 110 million subscribers, said it identified malicious activity on January 5 and contained it within a day, adding that no sensitive data such as financial information was compromised.
