What's stopping someone from buying a used computer at the city street market, taking it to one public park with internet access and sending child porn to a hug

What's stopping someone from buying a used computer at the city street market, taking it to one public park with internet access and sending child porn to a huge list of MEPs[1] or one of the countless leaked emails lists (from Facebook and other providers) [1] https://www.asktheeu.org/en/request/list_of_meps_and_their_offices_e_4 https://www.asktheeu.org/en/request/list_of_meps_and_their_o... )