bamshad,S , , hashemi,S , and soltanifar,M . "Investigating the factors affecting the trust of Iranian users in internal messengers and social networks (the case study of WhatsApp, Telegram,Soroush and yes, Aparat and YouTube)" .e78334 , Letter of Culture and Communication, , , 2026, e78334. doi: 10.30497/lcc.2026.246793.1142