Following the random killing incident in Taipei on December 19, in which 27-year-old Chang Wen caused four deaths and 11 injuries, authorities have reported a surge of threatening and violent posts on social media and online forums. Some users even posted messages suggesting attacks on others, creating social unrest. So far, police have investigated and apprehended eight individuals in connection with these online threats.
The Criminal Investigation Bureau (CIB) has strongly warned that spreading threats, encouraging violence, or inciting attacks online constitutes a serious public safety risk and will be prosecuted to the fullest extent of the law.
Police emphasised that social media platforms, anonymous forums, and messaging apps are not “grey zones” beyond the law. Even deleted posts, comments, and shared content leave digital traces. Posting threats or violent messages as jokes, dares, or challenges can cause public panic, waste resources, and may result in criminal or administrative penalties.
To prevent a “copycat effect” following the December 19 incident, the CIB coordinated a nationwide online monitoring operation. Suspected content involving threats, promotion of violence, incitement, or misinformation was immediately identified, evidence collected, and perpetrators investigated in cooperation with prosecutors. By December 24, within three days, authorities had identified 71 relevant online posts and apprehended eight suspects.
Of those apprehended, two were remanded by court order, and one was taken into custody during a court hearing. Police have vowed to continue investigating anyone hiding behind screens to spread illegal content.
The authorities also urged the public not to post, share, or endorse threatening or violent content, as this can amplify social unrest. Citizens who come across suspicious posts, comments, or messages that threaten public safety are encouraged to preserve screenshots, links, account information, and timestamps, and report them immediately by calling 110 or contacting local police stations.
