X/Twitter research
Independent research into X/Twitter’s platform behaviour — gathered from the watchdogs who produced it. Filter by organisation, topic or DSA article, then read the source.
63 reports
- CCDH· Jun 2026· X/Twitter
The Owner Amplifier: Musk spreading violent anti-migrant narratives on X
Musk amplified anti-migrant narratives; CCDH found 3,930 replies containing calls for violence.
Hate Speech & ExtremismMisinformation & Disinformation - ISD· Jun 2026· X/Twitter, Meta, YouTube, Telegram, Cross-platform
Online Domestic Extremism in Canada Data Briefing (Dec 2025-Feb 2026)
Recurring data briefing tracking violent-extremist activity across major platforms in Canada; consistently finds Telegram the leading platform for such activity.
Hate Speech & Extremism - CCDH· May 2026· X/Twitter
X Turns Jewish Grief into a Target, Again
130 hateful replies to British Jewish figures after the Golders Green attack, all apparently violating X rules, were left up.
Hate Speech & ExtremismContent Moderation - CCDH· Apr 2026· X/Twitter
X-rated: X recommends explicit content to 13-year-olds
Test 13-year-old accounts: 8 in 10 searches returned explicit content and 30% of For You posts were explicit.
Child Safety & MinorsAlgorithmic Harm & Recommender SystemsArt. 28 — Protection of minors - Global Witness· Apr 2026· X/Twitter
How fossil fuel companies and their financiers avoid criticism on X
Major fossil fuel companies use X ad-targeting to hide their advertising from the users most likely to challenge them (pro-climate audiences).
Ad Transparency & FraudArt. 26 — Ad labelling - Global Witness· Mar 2026· X/Twitter, Meta
Weaponising social media: smears of Indigenous leaders in Guatemala
Deregulation of major platforms is helping drive online smear campaigns and criminalisation of Guatemalan land and democracy defenders.
Misinformation & DisinformationHate Speech & ExtremismPlatform Compliance & Governance - The Markup· Feb 2026· TikTok, X/Twitter
Blacklight update: are TikTok and X tracking you across the internet?
The Markup expanded its Blacklight privacy inspector to detect TikTok and X tracking pixels on third-party websites, revealing how these platforms follow users across the web.
Ad Transparency & Fraud - CCDH· Jan 2026· X/Twitter
Grok floods X with sexualized images of women and children
After a one-click edit feature launched, Grok generated an estimated 3M sexualized images (including ~23,000 of children) in 11 days.
Gender-Based Violence & HarassmentChild Safety & MinorsArt. 28 — Protection of minors - AI Forensics· Jan 2026· X/Twitter
Grok Unleashed: An Update
Follow-up found a drop in minimally-attired images by mid-January (suggesting new safeguards), but Grok.com retained the capability and synthetic media depicting minors was still found.
Gender-Based Violence & HarassmentChild Safety & MinorsArt. 28 — Protection of minors - AlgorithmWatch· Jan 2026· X/Twitter, Meta, Telegram, Cross-platform, Other
Sexualized images on X: what we are doing to stop them and what we expect from the EU
Documented networks of X accounts openly promoting non-consensual 'nudify' tools; a reported post was deemed non-violating, and X refused a DSA Art. 40.12 data request, blocking research (context to the EU's DSA fine on X).
Gender-Based Violence & HarassmentData Access & Research ToolsArt. 40 — Researcher data accessArt. 34/35 — Systemic risk - AI Forensics· Jan 2026· X/Twitter
Grok Unleashed: Flood of Sexualized Images of Women and Minors
Analysis of 20k+ Grok images and 50k prompts found weak guardrails: 53% minimal attire, 81% women-presenting, ~2% appearing to be minors, 6% public figures, plus Nazi/ISIS propaganda.
Gender-Based Violence & HarassmentChild Safety & MinorsHate Speech & ExtremismArt. 28 — Protection of minors - Access Now· Dec 2025· X/Twitter, Meta, YouTube, Google, Cross-platform
War profiteers: online ads and the machinery of propaganda for war
Examines how governments deploy war propaganda through online advertising and argues platforms bear responsibility under international human rights law to prevent monetizing it.
Ad Transparency & FraudMisinformation & Disinformation - CCDH· Oct 2025· X/Twitter
Antisemitic abuse on X after Manchester Synagogue attack
Antisemitic abuse and calls for violence flooded X following the attack, largely left unremoved.
Hate Speech & ExtremismContent Moderation - CCDH· Oct 2025· X/Twitter
Viral antisemitic posts about Charlie Kirk assassination amass 139m views on X
Antisemitic conspiracies about Kirk's killing reached ~140M views; no viral post carried a Community Note.
Hate Speech & ExtremismMisinformation & Disinformation - CCDH· Sept 2025· X/Twitter
A Home for Hate: How Antisemitism Thrives on X
Using AI tools, CCDH found X hosts and profits from antisemitic content violating its own policies.
Hate Speech & ExtremismAd Transparency & Fraud - CCDH· Jul 2025· X/Twitter
X fails to act on 97% of calls for violence against migrants or Muslims
A year after the riots, X left up 97% of reported violent anti-migrant/anti-Muslim content.
Hate Speech & ExtremismContent ModerationArt. 16/20 — Notice-and-action - CCDH· Jul 2025· X/Twitter
Fuelling Hate: One year after the UK riots, X still lets abuse spread
X is still failing to remove rule-violating anti-Muslim/anti-migrant calls for violence a year after the riots.
Hate Speech & ExtremismContent Moderation - Check First· Jun 2025· TikTok, X/Twitter, Telegram, Cross-platform, Other
Operation Overload: an AI-fuelled escalation ('Overload 2')
The operation escalated using AI-generated content; Telegram is the central hub (673 channels) while ~11,000 X accounts amplify it. TikTok demoted accounts only after 3M+ views.
Misinformation & DisinformationContent Moderation - AI Forensics· Jun 2025· X/Twitter
When Personal Becomes Profitable: Sensitive Targeting on X
X let advertisers target users by sensitive personal data (political beliefs, sexual orientation); 30+ major brands were found doing so, raising GDPR and DSA concerns as VLOPs are barred from such targeting.
Ad Transparency & FraudArt. 26 — Ad labelling - CCDH· May 2025· X/Twitter
X posts claiming European leaders took cocaine reach 135M views
50 posts with baseless drug claims about Starmer/Macron/Merz got 135M views, with no Community Notes.
Misinformation & Disinformation - Check First· Mar 2025· X/Twitter, Telegram, Other
'Pravda' Network: Worldwide Expansion and LLM/Wikipedia Pollution
With DFRLab, showed the Russian 'Pravda' network expanded globally and polluted LLMs and Wikipedia; X's Community Notes failed to address its spread.
Misinformation & Disinformation - ISD· Feb 2025· X/Twitter, Telegram, Cross-platform
Generative AI and the German Far Right: Narratives, Tactics and Digital Strategies
Documents how German far-right actors use generative AI to produce and spread propaganda across social platforms, with new narrative and digital-strategy tactics.
Hate Speech & ExtremismMisinformation & Disinformation - Global Witness· Feb 2025· TikTok, X/Twitter
X and TikTok algorithms push pro-AfD content to non-partisan German users
On TikTok, 78% of algorithmically recommended political content (from unfollowed accounts) was pro-AfD; on X, 64%, far exceeding the party's ~20% polling.
Election IntegrityAlgorithmic Harm & Recommender Systems - RDR· Jan 2025· TikTok, X/Twitter, Meta, YouTube, LinkedIn, Cross-platform, Other
The 2025 RDR Index: Big Tech Edition
Seventh edition (first full evaluation since 2022): no company scored over 50%; TikTok debuted strongly while X showed RDR's largest-ever single-company decline after cutting its human rights team and transparency reporting.
Platform Compliance & GovernanceContent Moderation - Global Witness· Dec 2024· X/Twitter
Climate of confusion: Bot-like accounts sharing climate disinformation
22 of 45 previously identified bot-like X accounts amplified climate denial/conspiracies, tying climate opposition to broader anti-migrant, anti-LGBTQ and anti-Ukraine political identity.
Misinformation & DisinformationHate Speech & Extremism - Access Now· Dec 2024· TikTok, X/Twitter, Meta, YouTube, Cross-platform
Rainbow-burning: how social media companies increase risks for LGBTQ+ people in Africa
Documented 214 threatening anti-LGBTQ+ posts across the platforms in five African countries; only 51 were removed when reported, blaming under-resourced moderation for African languages and engagement-driven algorithms.
Gender-Based Violence & HarassmentHate Speech & ExtremismContent ModerationArt. 16/20 — Notice-and-action - EU DisinfoLab· Nov 2024· X/Twitter, Meta, Telegram, Cross-platform
Doppelganger media impersonation: leveraging domain name dispute resolution
Explores using domain-name dispute resolution as a countermeasure against the Doppelganger media-impersonation operation.
Misinformation & DisinformationPlatform Compliance & Governance - CCDH· Nov 2024· X/Twitter
Musk's Political Posts
Musk's own political posts drew more views than all US campaign ads in X's disclosure dataset.
Election IntegrityAd Transparency & Fraud - CCDH· Oct 2024· X/Twitter
Rated Not Helpful: How X's Community Notes system falls short
Community Notes failed to counter false/misleading US election claims, with proposed notes rarely shown.
Misinformation & DisinformationElection IntegrityContent Moderation - ISD· Sept 2024· TikTok, X/Twitter, Meta, YouTube, Cross-platform
US Election Platform Preparedness: Comparative Analysis
Assessed platforms across six areas ahead of the 2024 US election; the most alarming common finding was a pervasive lack of transparency about policies, safety efforts and resourcing.
Election IntegrityPlatform Compliance & GovernanceArt. 34/35 — Systemic risk - Check First· Sept 2024· X/Twitter, Telegram
Operation Overload: a growing disinformation threat targeting the US election
With Reset Tech, confirmed the operation is Russia-based and had shifted focus to the US election, targeting Kamala Harris.
Misinformation & DisinformationElection Integrity - CCDH· Aug 2024· X/Twitter
Grok AI: A deepfake disinformation disaster for democracy
X's Grok accepted all 60 tested prompts to generate misleading US election images.
Misinformation & DisinformationElection Integrity - CCDH· Aug 2024· X/Twitter, Telegram
Social media's role in the UK riots (OSA amendments)
Policy paper arguing platforms (especially X and Telegram) fueled the riots via online hate/lies; proposes new regulatory powers.
Platform Compliance & GovernanceHate Speech & Extremism - CCDH· Aug 2024· X/Twitter
X ran ads on five accounts pushing lies and hate during UK riots
X placed major brands' ads beside disinformation accounts that amassed 260M views after Southport.
Ad Transparency & FraudMisinformation & DisinformationHate Speech & Extremism - CCDH· Aug 2024· X/Twitter
Musk misleading election claims viewed 1.2bn times on X
Musk's false/misleading US election claims got ~1.2 billion views, none carrying a Community Note.
Misinformation & DisinformationElection Integrity - CCDH· Aug 2024· X/Twitter
Musk's X helps Tommy Robinson rack up 434 million views during UK riots
X amplified Tommy Robinson's disinformation to 434M+ views during the UK riots with virtually no fact-checks.
Misinformation & DisinformationHate Speech & Extremism - Mozilla· Aug 2024· TikTok, X/Twitter, Meta, YouTube, Google, LinkedIn, Snapchat, Cross-platform, Other
Public Data Access Programs: A First Look
First systematic evaluation of 19 platforms' researcher data-access programs; access varies widely and data quality is poor.
Data Access & Research ToolsArt. 40 — Researcher data access - EFF· Jul 2024· TikTok, X/Twitter, Meta, Cross-platform
Digital Apartheid in Gaza: Unjust Content Moderation (2-part series)
Documents how platforms, especially Meta (reportedly ~94% compliance with Israeli Cyber Unit takedown requests), disproportionately removed pro-Palestinian content while failing to curb anti-Palestinian hate.
Content ModerationHate Speech & Extremism - CCDH· Jul 2024· X/Twitter
Trump's assassination attempt conspiracies
Conspiracies about the assassination attempt got 215M+ views on X; 95% of posts had no fact-check.
Misinformation & DisinformationElection Integrity - EU DisinfoLab· Jul 2024· X/Twitter, Meta, Telegram, Cross-platform
Yet more evidence of Russia's boundless impunity to spread misinformation in the EU
Further documentation of the Doppelganger influence operation's continued reach across social platforms in the EU.
Misinformation & Disinformation - Global Witness· Jul 2024· X/Twitter
Political bias on X's AI chatbot (Grok) risks influencing the UK vote
Grok generated politically biased suggested tweets, in 'Fun' mode encouraging a #VoteReformUK vote and in 'Regular' mode implicitly discouraging voting for the incumbent government.
Election IntegrityAlgorithmic Harm & Recommender Systems - Global Witness· Jul 2024· X/Twitter
'No ifs, many bots': Partisan bot-like accounts amplify divisive content on X
45 apparent bot accounts generated 4+ billion views (~610,000 posts), amplifying racist/sexualised abuse, conspiracies and climate disinformation; most supported Reform UK.
Hate Speech & ExtremismMisinformation & DisinformationAlgorithmic Harm & Recommender Systems - Global Witness· Jul 2024· X/Twitter
Bot-like posts seen more than 150 million times ahead of UK election
10 apparent bot accounts posted 60,000+ tweets seen ~150 million times in the weeks before the UK vote, many containing extreme hate speech, disinformation and pro-Putin content.
Election IntegrityMisinformation & DisinformationHate Speech & Extremism - Check First· Jun 2024· X/Twitter, Telegram
Operation Overload: pro-Russian actors flood newsrooms with fake content
Exposed the 'Matryoshka'/Operation Overload campaign flooding 800+ media/fact-checking organisations with content urging them to 'verify' fabricated anti-Ukraine material, diverting fact-checker resources.
Misinformation & Disinformation - EU DisinfoLab· May 2024· X/Twitter, Meta, Telegram, Cross-platform
Assessing cost-effectiveness: responses to the Doppelganger operation
Assesses responses to the Russian Doppelganger operation that clones media outlets and spreads links/ads across X, Facebook and Telegram.
Misinformation & DisinformationAd Transparency & FraudData Access & Research ToolsArt. 40 — Researcher data access - Global Witness· May 2024· TikTok, X/Twitter, YouTube, Cross-platform
Ticked off: TikTok approves EU elections disinformation ads in Ireland
TikTok approved all 16 election-disinformation ads ahead of the EU parliamentary elections; X rejected all of them and YouTube rejected all but two.
Election IntegrityMisinformation & DisinformationAd Transparency & FraudArt. 34/35 — Systemic risk - Access Now· May 2024· TikTok, X/Twitter, Meta, Cross-platform
Shrinking democracy, growing violence: Internet shutdowns in 2023
Annual #KeepItOn documentation of shutdowns and platform blocking worldwide in 2023, tying disruptions to elections, protests and conflict.
Platform Compliance & GovernanceElection Integrity - Mozilla· Apr 2024· TikTok, X/Twitter, Meta, YouTube, Google, LinkedIn, Snapchat, Cross-platform, Other
Full Disclosure: Stress Testing Tech Platforms' Ad Repositories
With CheckFirst: tested ad-transparency tools of 11 companies; none rated 'ready,' with major data gaps and inaccuracies.
Ad Transparency & FraudPlatform Compliance & GovernanceArt. 39 — Ad transparency - CCDH· Apr 2024· X/Twitter
Hate Pays: How X accounts are exploiting the Israel-Gaza conflict
10 X accounts pushing anti-Jewish/anti-Muslim/anti-Palestinian hate grew ~4x faster after October 7.
Hate Speech & Extremism - Mozilla· Feb 2024· TikTok, X/Twitter, Meta, YouTube, Cross-platform
Platforms, Promises and Politics: a reality check on election pledges
Finds platforms' election interventions in the Global Majority are template-copied and far weaker than those offered in the US/EU.
Election IntegrityPlatform Compliance & GovernanceArt. 34/35 — Systemic risk - Data & Society· Jan 2024· X/Twitter, Other
When Kindness Kills: How Algorithms Accelerate Savior Swarms
Introduces 'savior swarming,' algorithmically amplified surges of well-intentioned collective action that overwhelm and harm the communities they aim to help (cases: Twitter trending, r/BlackPeopleTwitter).
Algorithmic Harm & Recommender Systems - EU DisinfoLab· Jan 2024· X/Twitter
Disinformation on X: research and content moderation policies
Factsheet documenting how disinformation on X is researched and how the platform's content-moderation policies operate.
Misinformation & DisinformationContent ModerationArt. 34/35 — Systemic risk - Global Witness· Dec 2023· TikTok, X/Twitter, Meta, YouTube, Cross-platform
Violent and sexualised hate speech targeting women journalists (South Africa)
Nearly all 40 misogynistic test ads (in 4 languages) were approved; Meta and TikTok approved all 40 within 24 hours. Concludes automated moderation is 'not fit for purpose.'
Gender-Based Violence & HarassmentHate Speech & ExtremismAd Transparency & Fraud - EU DisinfoLab· Sept 2023· TikTok, X/Twitter, Meta, YouTube, Cross-platform
Platforms' policies on climate change misinformation (V1)
Maps how the five platforms address climate misinformation, revealing uneven and weak climate-specific rules.
Misinformation & DisinformationPlatform Compliance & Governance - Global Witness· Sept 2023· TikTok, X/Twitter, Meta, YouTube, Cross-platform
A world of online hate and lies: Mapping our investigations
A synthesis of 10+ country investigations concluding platforms systematically fail to enforce their own hate-speech/disinformation ad policies, with weaker moderation outside the US.
Hate Speech & ExtremismMisinformation & DisinformationAd Transparency & Fraud - CCDH· Sept 2023· X/Twitter
X Content Moderation Failure
X still hosted ~86% of 300 reported extreme-hate posts a week after they were reported.
Hate Speech & ExtremismContent ModerationArt. 16/20 — Notice-and-action - EU DisinfoLab· Jun 2023· TikTok, X/Twitter, Meta, YouTube, Cross-platform
Platforms' policies on elections misinformation
Maps and compares how five major platforms address election misinformation in their policies.
Misinformation & DisinformationElection IntegrityPlatform Compliance & Governance - EU DisinfoLab· Jun 2023· TikTok, X/Twitter, Meta, YouTube, Cross-platform
Platforms' policies on health misinformation
Maps and compares how five major platforms address health misinformation in their policies.
Misinformation & DisinformationPlatform Compliance & Governance - CCDH· Jun 2023· X/Twitter
Twitter fails to act on 99% of Twitter Blue accounts tweeting hate
Twitter failed to act on 99% of hateful posts by Blue subscribers and appeared to algorithmically boost them.
Hate Speech & ExtremismContent ModerationAlgorithmic Harm & Recommender SystemsArt. 16/20 — Notice-and-action - CCDH· Mar 2023· X/Twitter
Toxic Twitter: How Twitter Makes Millions from Anti-LGBTQ+ Rhetoric
Anti-LGBTQ+ 'grooming' rhetoric jumped 119% under Musk while Twitter profited from ads placed against it.
Gender-Based Violence & HarassmentHate Speech & ExtremismAd Transparency & Fraud - ISD· Mar 2023· X/Twitter
Antisemitism on Twitter Before and After Elon Musk's Acquisition
With CASM Technology: weekly average English-language antisemitic tweets rose 106% after Musk's takeover and new antisemitic-posting accounts more than tripled, with no evidence 'deboosting' reduced engagement.
Hate Speech & Extremism - CCDH· Feb 2023· X/Twitter
Toxic Twitter: bringing back banned accounts generates ad revenue
Previously banned accounts reinstated by Musk are generating millions in ad revenue for the platform.
Ad Transparency & FraudContent Moderation - Check First· Jan 2023· X/Twitter
Why is 'Nazis' regularly trending on Twitter in Belgium?
Analysis showing how Russian official narratives get amplified on Twitter in Belgium whenever 'Nazis' trends, revealing coordinated pushing of pro-Kremlin framing.
Misinformation & Disinformation