Many Sprint customers recently learned that their accounts were compromised through the Samsung website. Sprint confirmed the breach to Gizmodo, and said credit card and social security numbers were not compromised as they are encrypted. The company did not answer questions about how many accounts were affected and when the accounts were first breached. Sprint-owned Boost Mobile told customers in May that a hacker breached accounts using Boosts website PIN numbers and Boost phone numbers. Customers may have seen their phone numbers, device type, device ID, monthly recurring charges, subscriber ID, account number, account creation date, upgrade eligibility, first and last name.”]
Source: https://gizmodo.com/hacker-breached-sprint-customer-accounts-through-samsun-1836426687