ALBANY, N.Y. (AP) — Fitbit, the maker of a popular line of wearable fitness-tracking devices, said Friday that it does not sell personal data to advertisers, contrary to concerns raised by U.S. Sen. Charles Schumer.

The San Francisco-based company spelled out its privacy policy on its website after Schumer warned of a potential “privacy nightmare” relating to concerns that the makers of fitness monitoring devices could sell users’ data to advertisers.

Recommended Stories

Selling social media clicks becomes big business

University of Md. breached data goes back to 1992

HBO accused of sharing subscriber data with Facebook in class lawsuit