derby Wales police are investigating after hackers took over a billboard in Cardiff ’s central Street , and posted content including images of a swastika and Donald graffiti . Passers by reported the incident to the police . Cardiff council subsequently switched off the screens . The perpetrators are members of alt - tech group 4chan , linked to the site 's twitter account .
South Wales police are investigating after hackers took over a billboard in Cardiff’s Queen Street, and posted content including images of a swastika and Donald Trump. Passers by reported the incidents to the police. Cardiff council subsequently switched off the screens. The perpetrators are members of alt-right forum 4chan, according to the site's twitter account.