"Ruggerio was using a mobile chat application to distribute the images, some of children under the age of 12, in April 2016. He also admitted receiving child porn on the app, and that he had images on his cell phone when authorities arrested him in June 2017, at work, authorities said. (Federal prosecutors did not name the app so as to not alert other users trading in such illegal images, court papers show.) He worked at the Albert C. Wagner Youth Correctional Facility in Chesterfield, a state Department of Corrections prison for young adult offenders. He was a senior corrections officer with an annual salary of $48,559 a year."
https://www.nj.com/ocean/2019/06/former-nj-corrections-officer-admits-sharing-child-porn-using-app-faces-federal-prison.html