Denis Teyssou's Avatar

Denis Teyssou

@dteyssou.bsky.social

@afpnews.bsky.social Medialab, journalist, fake news debunker (verification plug-in founder & maker) @vera-ai.bsky.social innovation manager, PhD candidate in Information sciences on #disinformation @ParisNanterreUniversity

689 Followers  |  1,862 Following  |  16 Posts  |  Joined: 23.11.2024
Posts Following

Posts by Denis Teyssou (@dteyssou.bsky.social)

Do not worry @evapunkt.bsky.social we go on developing the plugin. More innovation to come.

26.11.2025 14:01 — 👍 6    🔁 1    💬 1    📌 0
The Anti-Autocracy Handbook: A Scholars' Guide to Navigating Democratic Backsliding The Anti-Autocracy Handbook is a call to action, resilience, and collective defence of democracy, truth, and academic freedom in the face of mounting authoritarianism. It tries to provide guidance to ...

I am privileged to announce the publication of the Anti-Autocracy Handbook: sks.to/autocracy 1/12

19.06.2025 09:44 — 👍 842    🔁 465    💬 20    📌 61
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‘Self-regulation has proven a failure’: Brazilian leaders defend the need for social media regulation - Poynter GlobalFact speakers urge social platforms to fight disinformation: ‘Freedom of expression but freedom of expression with responsibility’

www.poynter.org/fact-checkin...

26.06.2025 12:12 — 👍 16    🔁 5    💬 0    📌 0
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Our verification plugin v0.86 (@InVID_EU @WeVerify @vera-ai.bsky.social) is published!
It is now available in Português (do Brasil) and Hungarian!
It includes UI improvements on archiving and deepfake detection (face swapping).
#globalfact12

26.06.2025 12:30 — 👍 9    🔁 3    💬 0    📌 0
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Deepfakes audio : des faux de plus en plus difficiles à détecter ?
La démocratisation des outils de génération d'audio par IA a accéléré la production et la qualité de ces contenus usurpant la voix de personnalités. Une prolifération qui inquiète...⬇️
1/3

22.03.2025 09:32 — 👍 1    🔁 4    💬 1    📌 1
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Salle comble au @medialab-scpo.bsky.social pour un premier débat sur l’avenir des réseaux sociaux. Comment dépasser l’âge du cynisme, de la commercialisation et de la dégradation de l’information ?

19.03.2025 18:58 — 👍 3    🔁 1    💬 0    📌 0
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Spotting false news and doubting true news: a systematic review and meta-analysis of news judgements - Nature Human Behaviour Pfänder and Altay conduct a systematic review and meta-analysis of 67 experimental articles, showing that people discern true from false news with ease. When making mistakes, people err on the side of...

Great keynote talk by @janpfa.bsky.social & @sachaltay.bsky.social at the inauguration of the 3rd edition of the #InfoxsurSeine2025 seminar.
infoxsurseine.org/2025/
www.nature.com/articles/s41...

19.03.2025 09:26 — 👍 10    🔁 3    💬 1    📌 0
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3ème édition du colloque Infox sur Seine les 19 et 20 mars 2025 chez Europa Expérience, 28 place de la Madeleine, 75008 Paris
Participation gratuite, mais nombre de places limité. Inscription obligatoire ⬇️
www.helloasso.com/associations...

Plus d'infos sur le site infoxsurseine.org/2025/

07.03.2025 16:47 — 👍 5    🔁 2    💬 0    📌 0
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AI-Generated Images of Pope Francis Drive Traffic to Network of Suspicious Websites in Coordinated Campaign VERification Assisted by AI. R&D & innovation co-funded by the HorizonEU. Continuing WeVerify work. And much more!

Researchers at Uni Urbino uncovered a significant #disinformation campaign on #Facebook pertaining to #PopeFrancis’ health. Here's what they found.
#InauthenticCoordinatedBehavior
By @fabiogiglietto.bsky.social, @giadam.bsky.social, @informativeicts.bsky.social @mterenzi.bsky.social.

06.03.2025 16:58 — 👍 9    🔁 9    💬 1    📌 1

Le watermark est bcp plus robuste que le C2PA qui est un ajout de métadonnées de traçabilité dans l’image.

06.03.2025 05:33 — 👍 0    🔁 0    💬 1    📌 0
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Grok3 (on X) is fun and informative. I asked it : Who are the top 10 spreaders of disinformation in the world?
And got this "speculative" response ⬇️

28.02.2025 10:50 — 👍 3    🔁 3    💬 0    📌 0

Lecteur C2PA, watermarking et recherche par similarité

18.02.2025 16:06 — 👍 2    🔁 0    💬 1    📌 0
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Many thanks to Michiya Tominaga, Naoki Inoue (NHK) and Prof. Hiroyuki Fujishiro (Hosei Univ.) for making the plugin available in Japanese!

07.02.2025 10:03 — 👍 1    🔁 1    💬 0    📌 0
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We publish a new version (v0.84) of our verification plugin. It improves the keyframes file mode and assistant (both from @veraai_eu), archiving (from #DisinfoArchiving @factchecknet project) and includes a Japanese localization!

07.02.2025 10:03 — 👍 7    🔁 8    💬 1    📌 2
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Demo of @vera-ai.bsky.social latest AI tools integrated in our verification plugin and more with @julienpain.bsky.social "vrai ou faux" team at FranceTVInfo. Tackling #disinformation !

16.01.2025 18:50 — 👍 5    🔁 1    💬 0    📌 0

We stopped the Firefox version a long time ago because of a lack of resources to maintain two code repositories. Firefox has only around 6% browser market share. The Chrome browser also works with Opera, Brave, Arc, Chromium and Edge (all together above 70% of browser market)

15.01.2025 06:29 — 👍 0    🔁 0    💬 2    📌 0
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EFCSN disappointed by end to Meta’s Third Party Fact-Checking Program in the US; Condemns statements linking fact-checking to censorship – European Fact-Checking Standards Network (EFCSN) 7 January 2025 – The European Fact-Checking Standards Network (EFCSN) is disappointed by  Meta’s decision to end its Third Party...

#EFCSN condemns Zuckerberg's statement linking fact-checking to censorship : efcsn.com/news/2025-01...

07.01.2025 20:07 — 👍 3    🔁 2    💬 0    📌 0
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Home VERification Assisted by AI. R&D & innovation co-funded by the HorizonEU. Continuing WeVerify work. And much more!

Due to a server hardware failure during the winter break, the keyframes fragmentation service of our verification plugin (InVID / WeVerify / Veraai.eu) is currently down. Sorry for the inconvenience. We are working to repair it asap.

07.01.2025 10:39 — 👍 0    🔁 0    💬 0    📌 0
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Opinion | Bluesky Is Different From X. For Now. Users are looking for a more curated experience on a platform that is not constantly trying to get them to interact with brands.

“Liberals moving away from X are giving up on the 20th-century ideal of a public sphere, best described by Hannah Arendt as a place that
"gathers us together and yet prevents our falling over each other." www.nytimes.com/2024/12/07/o...

08.12.2024 11:10 — 👍 4    🔁 0    💬 1    📌 0

Our verification plugin mentioned 18 times in the guide How to Detect and Analyse Identity-Based Disinformation/FIMI :
- PDF file : www.eeas.europa.eu/sites/defaul...
- Webinar from @disinfo.eu : www.disinfo.eu/publications...

07.12.2024 18:23 — 👍 6    🔁 3    💬 0    📌 0
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Doppelganger media impersonation: Leveraging domain name dispute resolution - EU DisinfoLab Disinformation networks register domain names that are the same as, or confusingly similar to, legitimate media outlets. This post sheds light on how media outlets can defend themselves against domain...

www.disinfo.eu/publications...

07.12.2024 11:27 — 👍 3    🔁 3    💬 0    📌 0
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Under the Radar Crisis, reorganization, and clandestinization in Russia’s ecosystem of information influence after the invasion of Ukraine Maxime Audinet and Colin Gérard

If you want to know more about Russian systemic efforts to disinform audiences globally, I can only recommend to read this good summary from @maudinet.bsky.social and @colingerard.bsky.social therussiaprogram.org/russia_infor...

21.11.2024 10:38 — 👍 19    🔁 5    💬 1    📌 2

Last week I deleted my X account and I almost have more followers here already. What to do with this modest but unexpected popularity?

Reminding you that last week I also presented a report on how to detect/analyse identity-based #disinformation fuelled #FIMI with simple #OSINT techniques 🏳️‍🌈🔎📒

21.11.2024 09:24 — 👍 61    🔁 17    💬 6    📌 1