Facebook reportedly used an internal mobile app between 2015 and 2016 that used facial recognition to identify coworkers and their friends.

According to a Business Insider report, the app could identify a person by just pointing the phone at his/her picture. BI claimed that one version of the app could identify anyone on Facebook with enough data, but the company suggested that wasn't true. In a statement to CNET, a Facebook spokesperson said the app could only detect employees and friends who "had face recognition enabled." The app was meant as a "way to learn about new technologies," the spokesperson added.

The app has since been discontinued.

Facebook is dealing with a class action lawsuit over claims it collected facial recognition data without permission, allegedly violating Illinois' Biometric Information Privacy Act.