17 October Movement: Siher accused of terrorism. Telegram accounts emptied; speculation about chats on Signal
The 30-year-old researcher is in custody; the Milan Public Prosecutor’s Office is due to apply for confirmation of his detention tomorrow. His wife is also under investigation. Rumours of new encrypted conversations are circulating on radical channels
Key points
A charge of terrorism, a detention to be reviewed by a judge, and a digital network that seems to have suddenly fallen silent. But it may already be seeking new channels through which to communicate.
The Milan Public Prosecutor’s Office’s investigation into the 17 October Movement is entering a decisive phase: tomorrow, Public Prosecutor Francesca Crupi will seek confirmation of the detention of Youssef Siher, the 30-year-old researcher whom investigators believe to be one of the key figures behind the movement that emerged following the street violence in the Lombard capital. These are serious allegations, all of which remain to be proven.
Meanwhile, the movement’s Telegram channel has gone quiet: discussions have been closed, administrators are on high alert, and there are no signs of further mobilisation. Yet, according to rumours circulating on Telegram channels linked to the radical movement, new dedicated chat groups are reportedly springing up on Signal, the encrypted messaging platform. This scenario remains to be verified, and it is important to distinguish between any criminal liability on the part of the organisers and the position of the many users who had joined the channel without necessarily endorsing violent intentions or committing offences.
Youssef, the terrorism charges and the confirmation of his detention
The court hearing is scheduled for tomorrow, when Public Prosecutor Francesca Crupi, from the anti-terrorism section of the Milan Public Prosecutor’s Office, will submit a request for the arrest to be validated. The judge responsible for preliminary investigations will then, upon receiving the case files, set a date for the hearing and assess the legality of the measure.
Siher, a second-generation Italian of Moroccan origin, was transferred from Milan Police Headquarters to prison following a lengthy interrogation. He faces charges of incitement to commit a criminal offence, organised violence at public demonstrations and terrorism. According to investigators, he is believed to be one of the administrators of the Telegram channel and Instagram page of the 17 October Movement, through which content inciting and glorifying crime is said to have been disseminated.


