Roku had a data breach just last month. Again, on Friday the company confirmed that another 576,000 user accounts were accessed using a technique known as credential stuffing, where malicious hackers use usernames and passwords stolen from other data breaches and reuse the logins on other sites.

Roku said in fewer than 400 account breaches, the malicious hackers made fraudulent purchases of Roku hardware and streaming subscriptions using the payment data stored in those users’ accounts. Roku said it refunded customers affected by the account intrusions. Following the security incidents, Roku said that it rolled out two-factor authentication to users. Read more about this story on our LinkedIn page