A data-sharing agreement inked between the state Department of Education and a private nonprofit last week may led to confidential student information being used for commercial purposes, parents activists claim.

Critics said on Sunday they had privacy concerns about information sent to the student database known as the Shared Learning Collective — and a group called on Attorney General Eric Schneiderman to review the agreement.

Education Commissioner John King said care has been taken to ensure that sort of breach will not happen, saying there are "extensive privacy protections in federal and state law."

Ken Wagner, an associate commissioner at the state's education department, said the data cannot be sold without explicit consent from school districts.