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The mastermind of the 17October 17 Movement: Who is Youssef Siher, the Administrator of the page The video
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The mastermind of the 17October 17 Movement: Who is Youssef Siher, the Administrator of the page The video

Italian police have identified Youssef Siher, a 30-year-old Italian citizen of Moroccan descent, as the administrator of the Instagram page 'Movimento 17 October,' which organized protests in northern Italy. According to reports from RAI’s Tg1, Siher is currently under interrogation at the Milan Police Headquarters and faces charges from the Milan Public Prosecutor’s Office for incitement to crime, advocacy of crimes, and organized violence during public demonstrations, offenses aggravated by the use of digital tools. The article highlights his professional background, noting he works as a freelance journalist with previous collaborations with outlets such as Il Fatto Quotidiano and Il Foglio, and holds advanced academic degrees including a doctorate in Political Science. While initial reports speculated about Palestinian origins, the text clarifies his heritage is Italo-Moroccan and describes him as an activist linked to pro-Palestinian movements. Additionally, the Institute for International Political Studies (ISPI) issued a statement distancing itself from Siher, confirming he completed an internship there in 2024 but has had no further collaboration since.

The Milan prosecutor’s office has requested judicial validation for the preventive detention of Youssef Siher, a thirty-year-old researcher of Moroccan origin accused of inciting crime aggravated by terrorism. Investigators allege that Siher orchestrated the digital mobilization behind the "October 17 Movement," a social media network that rapidly gained tens of thousands of followers following violent clashes in central Milan. The charges include organized violence in public demonstrations, a new offense introduced under recent security decrees. While Siher was not formally charged in a separate investigation into alleged funding channels for Hamas, prosecutors in Genoa have initiated checks to determine if he maintains links with that network. The investigation, coordinated by the anti-terrorism section of the Milan prosecutor’s office under Public Prosecutor Francesca Crupi, emerged from intensive monitoring by the Digos police division, postal police, and the Aisi foreign intelligence service. Authorities identified Siher through his management of the movement’s Instagram page and a Telegram channel with nearly ten thousand subscribers. The platform served as a hub for coordinating protests across eight Italian cities. According to investigators, Siher and his wife, a cultural mediator based in Como who is also under investigation, used these platforms to transform spontaneous street anger into a structured political project. They circulated materials and specific instructions intended to facilitate further violent actions. Central to the case is a document titled "Revolution, Instructions for Use," which investigators say inspired the group’s tactics. The manual drew explicitly from the 2011 Egyptian revolution and outlined three tactical objectives: targeted political attacks against the government, the radicalization and expansion of street mobilization, and the protection of participants during clashes. The guide advised protesters on how to counter police measures, suggesting they carry painkillers, water bottles, and vinegar to mitigate tear gas effects. It also detailed strategies for evading law enforcement after incidents and identifying institutional buildings as symbolic targets. The document encouraged groups to block main streets and drag bystanders into violent confrontations, using slogans such as "They did not stop us with laws. We will not be stopped by armored vehicles." Siher’s academic and professional background contrasts sharply with the typical profile of participants in the riots. He holds a degree in Communication and a master’s in Political Science from the University of Milan, with research focused on Islamic political movements and the relationship between Islam and Arab nationalism. He worked as a freelance journalist, contributing to national publications including Il Fatto Quotidiano and Il Foglio. His profile at the Institute for International Political Studies (ISPI) described him as a Research Trainee specializing in the Middle East and North Africa. However, ISPI issued a statement clarifying that Siher completed an internship there in 2024 and has not collaborated with the institute since. During searches conducted in Milan and at his residence in the province of Brescia, police seized maps and notes indicating planned protest locations. At the time of his detention, Siher was found with other activists and reportedly stated, "I am a journalist." He faced no resistance during the arrest. The detention itself relied on a new provision in Italy’s security decree allowing for temporary preventive holding for up to twelve hours to prevent imminent threats to public order. This measure aimed to stop him from posting new coordinates for gatherings, specifically targeting areas in Milan such as Duomo-Vittorio Emanuele, San Babila, and Cordusio. Parallel investigations are examining potential connections between Siher and a network dismantled in December 2025 by the Ligurian anti-mafia directorate. That probe resulted in numerous arrests related to alleged diversion of humanitarian funds to Hamas through charitable associations. Prosecutors in Genoa, led by Nicola Piacente, confirmed that Siher’s name had recently surfaced in their inquiries. Sources indicated that checks were underway regarding possible ties between Siher and Mohammed Hannoun, the principal suspect in the Hamas financing case, as well as other members of the group. Hannoun, president of the Palestinian Association in Italy, is currently held in maximum-security prison in Terni. The investigation alleges that approximately eighteen million euros collected over twenty-five years for Gaza residents were diverted to the militant organization. Reactions to the detention have been polarized. Interior Minister Matteo Piantedosi praised the identification of Siher, describing him as having contacts with antagonist environments and emphasizing that the state would respond immediately to anyone organizing aggression. Defense Minister Guido Crosetto noted that Siher was not a marginalized figure but someone deeply integrated into intellectual circles. Conversely, actor Ascanio Celestini criticized the legal response, arguing that justice was being applied selectively. He compared the swift action against Siher to the delayed reaction regarding the conviction of Egyptian police officers in the Giulio Regeni murder trial, quoting former Prime Minister Giovanni Giolitti’s observation that rights are interpreted for friends and applied to enemies. Social media history provides additional context for the accusations. Siher’s online posts included aggressive rhetoric against Western institutions. In 2024, he replied to Foreign Minister Antonio Tajani’s comments on the death of an Israeli reservist with the phrase "Alhamdulillah." On October 7, 2023, he responded to solidarity messages from politician Matteo Salvini with "Allahu Akbar." Other posts featured the slogan "From the river to the sea" and denied the role of the Jewish Brigade in the Italian Resistance. One post published after a general strike in September 2025 directed a threat toward police officers hiding behind glass barriers at Milan Central Station, stating, "The day will come when we break that wall of glass behind which you hide." The judicial process is ongoing. The judge for preliminary hearings in Milan must validate the detention within forty-eight hours of its execution. Only after this validation will it be determined whether the evidentiary basis supports continued custody. The case highlights the intersection of digital activism, youth unrest, and broader geopolitical tensions, with authorities seeking to establish whether the digital coordination crossed the threshold into criminal conspiracy.

How this report was made. Objective News wrote this report from 5 source articles, using AI-assisted synthesis under our methodology. It is our own text, not a copy of any single outlet. Read our methodology.

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11 reports

Il Fatto Quotidiano logoIl Fatto QuotidianoIndependentCenterFactual: no official source document/info detectedObjective 60
Looting in Milan and blockades in the south: are we at the breaking point? Watch the live broadcast of Peter Gomez with Simone Bauducco and Youssef Tabi

On October 19, 2026, Italy experienced widespread protests, particularly in Milan, where demonstrations turned violent over two consecutive days. The situation has raised concerns about reaching a breaking point. Journalist Peter Gomez discussed the developments with Youssef Tabi, who has written extensively on youth issues, and Simone Bauducco, a reporter on-site at Milan’s Duomo square, who provided visual documentation and eyewitness accounts of recent events.

Bias read (Center): The article presents a journalistic account of ongoing protests without overtly favoring any side. It includes perspectives from multiple contributors and focuses on documenting events rather than promoting a specific ideological viewpoint.

Why factuality: no official source document/info detected

Why objectivity (60): The article includes a quote from Ignazio La Russa, which introduces a political viewpoint. While it attempts to remain objective, the inclusion of political commentary slightly reduces its overall neutrality.

Il Sole 24 Ore logoIl Sole 24 OreParty-aligned🔒Center
17 October Movement, Siher accused of terrorism: checks in Geneva on possible links with the Hamas network

Youssef Siher, a 30-year-old researcher of Moroccan origin, has been detained by Italian authorities on charges of incitement to crime aggravated by terrorist intent and organized violence during public demonstrations. The Milan prosecutor's office seeks judicial validation for his arrest, which was executed on October 24, while investigators describe him as the ideological figure who attempted to politicize spontaneous street unrest through digital platforms. Siher allegedly managed social media accounts for the 'October 17 Movement,' amassing tens of thousands of followers, to coordinate activities between anti-system groups and local youth involved in recent clashes in Milan. Although he is not currently under investigation for financing terrorism, the Genoa prosecutor's office is verifying potential connections between Siher and a network of charitable associations suspected of funneling funds to Hamas. Authorities emphasize that these are ongoing investigations and that the specific accusations against Siher remain to be proven before a judge.

Bias read (Center): The article maintains a strictly journalistic tone, focusing on procedural legal steps such as the request for detention validation and the distinction between current charges and separate verification processes. It attributes claims directly to investigative bodies like the Digos and prosecutors,避免

Il Giornale logoIl GiornaleParty-alignedConservative
What's in Siher's book of squares inspired by the Egyptian revolution of 2011

Italian authorities have investigated the 'October 17 Movement,' led by 30-year-old Youssef Siher, for organizing urban guerrilla tactics inspired by the 2011 Egyptian revolution. The group utilized a Telegram channel with nearly 10,000 members, supported by AI tools for propaganda, to distribute instructions for confronting police forces. Central to their operations was a manual titled 'Revolution, Instructions for Use,' which outlined three tactical objectives: attacking the Meloni government politically, radicalizing street mobilization, and protecting militants involved in clashes. The document provided specific advice for evading law enforcement, such as using vinegar to counter tear gas, and targeted institutional buildings as symbols of power. Prosecutors in Genoa are currently investigating potential links between Siher and a network dismantled in December 2025, which was accused of financing Hamas through cover charities.

Bias read (Conservative): The article frames the subject matter through a lens of national security and anti-terrorism, emphasizing the 'subversive' nature of the movement and the application of terrorism aggravating factors under new safety decrees. By highlighting the explicit targeting of the current government and the 'e

Il Giornale logoIl GiornaleParty-alignedConservative
He called me a racist and a white supremacist. So Siher was attacking Lorenzo Pregliasco on social media

Lorenzo Pregliasco, co-founder of YouTrend, shared a post on X revealing past online interactions with Youssef Siher, who has been identified by investigators as the alleged mastermind behind the 'Movimento 17 ottobre'. In the exchange, Siher accused Pregliasco and others of being racist, white supremacist, Eurocentric, and colonialist, while arguing that principles like freedom and justice were applied selectively against Arabs. The article contextualizes this incident within the ongoing Milan prosecutor's investigation into Siher, who is under inquiry for incitement to crime related to the movement's Instagram page used to organize protests following recent violence in the city. Additional examples of Siher's social media activity are cited, including his responses to Italian politicians regarding the killing of an Israeli reservist and the October 7 attacks, where he used phrases such as 'Alhamdulillah' and 'Allahu Akbar'. The piece concludes that these documented remarks demonstrate a consistent pattern of rhetoric that predates the current police investigation.

Bias read (Conservative): The article frames the subject through a lens critical of the individual's ideology, using terms like 'eloquent' sarcastically to describe hostile comments and labeling the behavior as more than simple social indiscretion. It highlights specific inflammatory phrases directed at Western values and以色列

Il Fatto Quotidiano logoIl Fatto QuotidianoIndependentProgressive
Ascanio Celestini: Youssef Siher head of the pack and mind of the revolt ? The law for friends is interpreted and for enemies it applies

Actor and playwright Ascanio Celestini released an Instagram video criticizing the Italian authorities' handling of Youssef Siher, a young man detained in connection with recent protests in Milan. Celestini mocked the characterization of Siher as the 'head of the pack' and 'mind behind the revolt,' noting that Siher is a university graduate fluent in multiple languages who was suspected of creating the 'October 17 Movement' Instagram page. The actor argued that the government applies legal standards inconsistently, contrasting this case with the reaction to the first-degree conviction of three Egyptian police officers in the Giulio Regeni murder trial. He recalled that the Foreign Minister had previously described the Regeni verdict as merely a first-instance ruling, implying a double standard where rights are interpreted leniently for allies but strictly applied to perceived enemies.

Bias read (Progressive): The article presents a strongly critical perspective on the Italian government and law enforcement, accusing them of hypocrisy and violating principles of legal guarantee ('garantismo'). By highlighting the disparity between the treatment of foreign nationals accused of crimes against Italy and the

Il Giornale logoIl GiornaleParty-alignedConservative
"He created fear and intimidation", Youssef Siher because he had a "subversive project". Checks on links with Hamas funders, found to be aggravating for terrorism

Youssef Siher has been detained by Italian police under new security decree provisions for allegedly organizing protests through the Instagram page 'Movimento 17 October.' Prosecutors in Milan charge him with incitement to crime aggravated by terrorism, citing his social media posts which they argue created fear and intimidation among the population. The investigation was led by the Digos and postal police with support from the Aisi intelligence agency, focusing on individuals who attempted to exploit spontaneous demonstrations rather than those who initiated them. Authorities discovered maps and logistical instructions for upcoming protests at Siher's residences in Brescia and Milan. Additionally, prosecutors in Genoa are verifying potential connections between Siher and suspects involved in a separate case regarding alleged financial support for Hamas.

Bias read (Conservative): The article frames the detention as a necessary countermeasure against 'fear' and 'intimidation,' explicitly linking the suspect's actions to terrorism and potential ties to Hamas. It emphasizes the state's successful intelligence work and the application of strict new security laws, presenting the

Open logoOpenIndependentConservative
From attacks on the police, to Tajani's retaliation, to pro-Pale propaganda: what is behind Youssef Siher's social profiles, 17minds of the October 17 Movement

Youssef Siher, a 30-year-old man of Italian-Moroccan descent, has been detained in Milan and investigated by prosecutors for incitement to crime, glorification of offenses, and organized violence during public demonstrations, allegedly serving as the mastermind behind the 'October 17 Movement.' The investigation highlights his online activity, including aggressive pro-Palestinian slogans such as 'From the river to the sea,' which he posted across various social media platforms. Siher previously claimed affiliation with the Institute for International Political Studies (ISPI), though the institute clarified that he was merely an intern who ceased collaboration in 2024. His digital footprint includes hostile comments directed at Italian Foreign Minister Antonio Tajani regarding the death of an Israeli reservist, as well as threatening messages aimed at police officers following violent protests at Milan Central Station in September 2025. Additionally, his social media profiles contain statements denying the Jewish Brigade's role in the Italian Resistance and promoting concepts of political Islam and revolution.

Bias read (Conservative): The article frames the subject through the lens of domestic security and law enforcement, emphasizing charges of incitement to violence against police and organized criminal behavior. It highlights the disconnect between the suspect's academic claims and his radicalized online rhetoric, using terms,

ANSA logoANSAIndependentConservative
Whoever is the mastermind of the October 17th Movement, would be a researcher with a PhD

Italian authorities have identified Youssef Siher, a 30-year-old researcher and former journalist, as the suspected administrator behind the Instagram page 'Movimento 17 ottobre,' which emerged following recent civil unrest. Siher, who holds a doctorate in geopolitics and has previously collaborated with the daily newspaper Il Fatto Quotidiano and the Institute for International Political Studies (Ispi), is currently under investigation by the Milan anti-terrorism prosecutor's office. He faces charges of incitement to crime aggravated by terrorist intent and the use of computer systems. Interior Minister Matteo Piantedosi stated that Siher maintains contacts with 'antagonist environments' and emphasized that state security forces would immediately respond to those attempting to organize riots while hiding behind social media anonymity. The suspect was located through intensive digital surveillance conducted by the Italian intelligence agency AISI and is currently being questioned at the Milan police headquarters.

Bias read (Conservative): The article frames the subject primarily through the lens of national security and law enforcement efficacy rather than journalistic inquiry into the underlying causes of the protests. By highlighting the suspect's academic credentials alongside his alleged ties to 'antagonist environments' and pro-

Il Fatto Quotidiano logoIl Fatto QuotidianoIndependentConservative
Milan, the alleged organizer of the October 17 Movement page, investigated for incitement to aggravated crime

Youssef Siher, a 30-year-old researcher and freelance journalist of Moroccan origin, has been investigated for aggravated incitement to crime in connection with the Instagram page 'Movimento 17 October,' which emerged following recent protests in Milan. Interior Minister Matteo Piantedosi announced the detention, stating that Siher had contacts with anti-system environments and emphasizing that the state would respond immediately to such activities. Defense Minister Guido Crosetto praised the police work, describing Siher as a well-connected individual who had frequented Italian intellectual circles rather than being marginalized. The 'Movimento 17 October' issued manifestos rejecting traditional political representation and expressing distrust in institutions, while declaring their intention to continue street demonstrations despite potential police intervention. Siher previously completed internships at the Institute for International Political Studies (ISPI) and Il Fatto Quotidiano, focusing his research on political Islam and Arab nationalism.

Bias read (Conservative): The article frames the investigation through the lens of high-level government officials, specifically quoting Interior Minister Piantedosi and Defense Minister Crosetto, who characterize the suspect as part of dangerous 'anti-system' networks and emphasize the state's firm response. While the piece

Open logoOpenIndependentCenter
The mastermind of the 17October 17 Movement: Who is Youssef Siher, the Administrator of the page The video

Italian police have identified Youssef Siher, a 30-year-old Italian citizen of Moroccan descent, as the administrator of the Instagram page 'Movimento 17 October,' which organized protests in northern Italy. According to reports from RAI’s Tg1, Siher is currently under interrogation at the Milan Police Headquarters and faces charges from the Milan Public Prosecutor’s Office for incitement to crime, advocacy of crimes, and organized violence during public demonstrations, offenses aggravated by the use of digital tools. The article highlights his professional background, noting he works as a freelance journalist with previous collaborations with outlets such as Il Fatto Quotidiano and Il Foglio, and holds advanced academic degrees including a doctorate in Political Science. While initial reports speculated about Palestinian origins, the text clarifies his heritage is Italo-Moroccan and describes him as an activist linked to pro-Palestinian movements. Additionally, the Institute for International Political Studies (ISPI) issued a statement distancing itself from Siher, confirming he completed an internship there in 2024 but has had no further collaboration since.

Bias read (Center): The article maintains a neutral, factual tone typical of standard news reporting, relying heavily on direct quotes from official sources like the Tg1, the Milan Public Prosecutor, and the Ministry of Interior. It presents the legal charges and the suspect's background without employing emotionally加载

Il Giornale logoIl GiornaleParty-alignedConservative
EXCLUSIVE - Thirty-year-old freelance journalist and activist Propal: who is the creator of the page October 17 Movement stopped by the police

Italian police identified Youssef Siher, a 30-year-old Italian citizen of Moroccan descent, as the main organizer behind the Instagram page 'Movimento 17 October,' which coordinated protests in Milan. Siher, described in the article as a freelance journalist, pro-Palestinian activist, and political science researcher at the Institute for Security Policy and International Affairs (ISPI), was detained under new security decrees to prevent him from directing crowds to specific city squares. The investigation, conducted jointly by the Digos, postal police, and the Milan prosecutor's office, resulted in charges of incitement to commit crimes after authorities seized digital devices containing instructions for protest locations. The report notes that while previous narratives claimed the movement had no central leadership, Siher’s role as a coordinator rather than just a theorist has been established, though investigators suspect other individuals may be involved.

Bias read (Conservative): The article frames the subject through a lens of law enforcement efficacy and national security, emphasizing the 'new security decree' and the identification of a 'mind' behind the chaos. It uses slightly dismissive or skeptical language regarding the subject's self-proclaimed status ('journalist')

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