Intuit, the company behind tax preparation software TurboTax, said users' accounts may have been accessed by an unauthorized party.

Threat actors used usernames and password combinations obtained from a non-Intuit source after an undisclosed number of TurboTax accounts were breached in a credential stuffing attack.

Tax returns from the prior year, current tax returns in progress, names, social security numbers, addresses, dates of birth, driver’s license numbers and financial information such as salaries and deductions were compromised, according to the notification.

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