(Reuters) - Microsoft Corp (MSFT.O) said on Wednesday it updated its privacy policy to let customers know that it had been collecting voice data of its users with the help of employees and contractors.

Hundreds of contractors reportedly were hired to transcribe Messenger voice chats in order to test the accuracy of an AI algorithm — raising questions about what Facebook does with the data.

Another user who was affected said they could read another person’s Credit Factors — including derogatory credit marks — but that the Credit Report tab with that user’s personal information, like names and addresses, was blank.