A First Look at Private Communications in Video Games using Visual Features. - Abdul Wajid; Nasir Kamal; Muhammad Sharjeel; Raaez Muhammad Sheikh; Huzaifah Bin Wasim; Muhammad Hashir Ali; Wajahat Hussain; Syed Taha Ali; Latif Anjum (Proc. Priv. Enhancing Technol., 2021)