<![CDATA[#Deepfakes are everywhere, but #DigitalForensics investigators are fighting back:]]> are everywhere, but investigators are fighting back:

🌍 https://scim.ag/42dMPBg

]]>https://board.circlewithadot.net/topic/37c3892f-a0eb-4f6c-a23a-4536afec6b1d/deepfakes-are-everywhere-but-digitalforensics-investigators-are-fighting-backRSS for NodeFri, 15 May 2026 02:45:43 GMTWed, 06 May 2026 20:56:11 GMT60<![CDATA[Reply to #Deepfakes are everywhere, but #DigitalForensics investigators are fighting back: on Sun, 10 May 2026 14:45:21 GMT]]>@FabMusacchio I don't know, I've seen some pretty bad tile jobs 🙂

]]>https://board.circlewithadot.net/post/https://ruby.social/users/stevecrozz/statuses/116550816307955324https://board.circlewithadot.net/post/https://ruby.social/users/stevecrozz/statuses/116550816307955324Sun, 10 May 2026 14:45:21 GMT<![CDATA[Reply to #Deepfakes are everywhere, but #DigitalForensics investigators are fighting back: on Sun, 10 May 2026 13:15:53 GMT]]>@FabMusacchio you forgot to poison your data , you post they learn

]]>https://board.circlewithadot.net/post/https://bsd.network/users/Zven/statuses/116550464536935195https://board.circlewithadot.net/post/https://bsd.network/users/Zven/statuses/116550464536935195Sun, 10 May 2026 13:15:53 GMT<![CDATA[Reply to #Deepfakes are everywhere, but #DigitalForensics investigators are fighting back: on Sun, 10 May 2026 13:14:05 GMT]]>oh this is a neat trick, I usually look for distorted writing and other small detail, but latest AI models are getting better at those

]]>https://board.circlewithadot.net/post/https://friends.grishka.me/posts/3270007https://board.circlewithadot.net/post/https://friends.grishka.me/posts/3270007Sun, 10 May 2026 13:14:05 GMT<![CDATA[Reply to #Deepfakes are everywhere, but #DigitalForensics investigators are fighting back: on Sun, 10 May 2026 13:11:38 GMT]]>@Walrus @nihilarc @FabMusacchio

Well, and besides, in a photograph with shadows, what's important is not that the lines don't converge, but that the shadows are basically at different angles, which means (would mean, in the case of a real photo or a render) that the light source is located very close.

Shadows from an “infinitely” distant sun should be parallel (well, on the scale of a single city square).

]]>https://board.circlewithadot.net/post/https://s.cafe/ap/users/116308070950655482/statuses/116550447841376421https://board.circlewithadot.net/post/https://s.cafe/ap/users/116308070950655482/statuses/116550447841376421Sun, 10 May 2026 13:11:38 GMT<![CDATA[Reply to #Deepfakes are everywhere, but #DigitalForensics investigators are fighting back: on Sun, 10 May 2026 13:03:51 GMT]]>@FabMusacchio Also, what's with the chains? And look at the left thumb on front and center guy.

]]>https://board.circlewithadot.net/post/https://mastodon.social/users/Biggreenjoe/statuses/116550417195901391https://board.circlewithadot.net/post/https://mastodon.social/users/Biggreenjoe/statuses/116550417195901391Sun, 10 May 2026 13:03:51 GMT<![CDATA[Reply to #Deepfakes are everywhere, but #DigitalForensics investigators are fighting back: on Sun, 10 May 2026 12:54:14 GMT]]>@nihilarc
Not just that: lens distortion, uneven lighting, confusing shades, etc. - we'll see lots of people claiming something is genai since it's not perfect, but... the world is not perfect. People are already getting called out for AI writing when it's just their style.
@FabMusacchio

]]>https://board.circlewithadot.net/post/https://cyberplace.social/users/viraptor/statuses/116550379397200080https://board.circlewithadot.net/post/https://cyberplace.social/users/viraptor/statuses/116550379397200080Sun, 10 May 2026 12:54:14 GMT<![CDATA[Reply to #Deepfakes are everywhere, but #DigitalForensics investigators are fighting back: on Sun, 10 May 2026 12:45:11 GMT]]>@FabMusacchio I would be more tolerant in the first example with the soldiers, because many builldings are not build perfectly straight or remain like that. If there is only a small error, it would not be a strong indicator for a fake. Of course, this doesn't apply to the other examples.

]]>https://board.circlewithadot.net/post/https://hessen.social/users/urwumpe/statuses/116550343826260579https://board.circlewithadot.net/post/https://hessen.social/users/urwumpe/statuses/116550343826260579Sun, 10 May 2026 12:45:11 GMT<![CDATA[Reply to #Deepfakes are everywhere, but #DigitalForensics investigators are fighting back: on Sun, 10 May 2026 12:43:51 GMT]]>@FabMusacchio Someone should do this with moon landing videos

]]>https://board.circlewithadot.net/post/https://mastodon.social/users/freagle/statuses/116550338592061894https://board.circlewithadot.net/post/https://mastodon.social/users/freagle/statuses/116550338592061894Sun, 10 May 2026 12:43:51 GMT<![CDATA[Reply to #Deepfakes are everywhere, but #DigitalForensics investigators are fighting back: on Sun, 10 May 2026 11:52:03 GMT]]>@FabMusacchio Perhaps they came to arrest the tiler?

]]>https://board.circlewithadot.net/post/https://mastodon.social/users/christianschwaegerl/statuses/116550134910378333https://board.circlewithadot.net/post/https://mastodon.social/users/christianschwaegerl/statuses/116550134910378333Sun, 10 May 2026 11:52:03 GMT<![CDATA[Reply to #Deepfakes are everywhere, but #DigitalForensics investigators are fighting back: on Sun, 10 May 2026 09:38:24 GMT]]>@YannC quand même il y a largement assez de pixel !

]]>https://board.circlewithadot.net/post/https://hostux.social/users/Flop_Ysh/statuses/116549609357598569https://board.circlewithadot.net/post/https://hostux.social/users/Flop_Ysh/statuses/116549609357598569Sun, 10 May 2026 09:38:24 GMT<![CDATA[Reply to #Deepfakes are everywhere, but #DigitalForensics investigators are fighting back: on Sun, 10 May 2026 09:22:00 GMT]]>@FabMusacchio damn, this is why they taught us math? To find the deep fakes posing as truth?

]]>https://board.circlewithadot.net/post/https://beige.party/users/MamaLake/statuses/116549544892608601https://board.circlewithadot.net/post/https://beige.party/users/MamaLake/statuses/116549544892608601Sun, 10 May 2026 09:22:00 GMT<![CDATA[Reply to #Deepfakes are everywhere, but #DigitalForensics investigators are fighting back: on Sat, 09 May 2026 08:28:35 GMT]]>@h3mmy Why should I do that work: I only click and boost posts with real links, that's it. So easy. 😉 @JonnyT @ilusenn @FabMusacchio

]]>https://board.circlewithadot.net/post/https://mastodon.online/users/NatureMC/statuses/116543672533267475https://board.circlewithadot.net/post/https://mastodon.online/users/NatureMC/statuses/116543672533267475Sat, 09 May 2026 08:28:35 GMT<![CDATA[Reply to #Deepfakes are everywhere, but #DigitalForensics investigators are fighting back: on Sat, 09 May 2026 06:16:29 GMT]]>@YannC @mathieu_ @AudeCaussarieu je crois que la chaîne qui rentre dans le bras gauche du soldat sur la gauche est un meilleur indice de fake que la perspective inexacte 🙂

]]>https://board.circlewithadot.net/post/https://mastodon.xyz/users/frankiezafe/statuses/116543153062030369https://board.circlewithadot.net/post/https://mastodon.xyz/users/frankiezafe/statuses/116543153062030369Sat, 09 May 2026 06:16:29 GMT<![CDATA[Reply to #Deepfakes are everywhere, but #DigitalForensics investigators are fighting back: on Fri, 08 May 2026 21:33:43 GMT]]>@seachaint @leadore @leah @f4grx @FabMusacchio in most situations, shadow perspective is apparent when the camera is pointing towards the sun. It’s different if camera is overhead.

Link Preview Image
]]>https://board.circlewithadot.net/post/https://mastodon.social/users/ghoppe/statuses/116541097480584125https://board.circlewithadot.net/post/https://mastodon.social/users/ghoppe/statuses/116541097480584125Fri, 08 May 2026 21:33:43 GMT<![CDATA[Reply to #Deepfakes are everywhere, but #DigitalForensics investigators are fighting back: on Fri, 08 May 2026 20:43:20 GMT]]>@JonnyT I like using redirect checkers like WhereGoes, RedirectDetective, etc which I've found to be quite convenient

@NatureMC @ilusenn @FabMusacchio

]]>https://board.circlewithadot.net/post/https://tech.lgbt/users/h3mmy/statuses/116540899393119373https://board.circlewithadot.net/post/https://tech.lgbt/users/h3mmy/statuses/116540899393119373Fri, 08 May 2026 20:43:20 GMT<![CDATA[Reply to #Deepfakes are everywhere, but #DigitalForensics investigators are fighting back: on Fri, 08 May 2026 20:21:24 GMT]]>@FabMusacchio@mastodon.social If you think floor tiles are a good indication for parallel lines, you need to watch more CyFy videos 😄

All jokes aside, this is a very good trick to spot AI content, and it still works with the most recent models.

]]>https://board.circlewithadot.net/post/https://transfem.social/notes/am0xcyu1ocu105kyhttps://board.circlewithadot.net/post/https://transfem.social/notes/am0xcyu1ocu105kyFri, 08 May 2026 20:21:24 GMT<![CDATA[Reply to #Deepfakes are everywhere, but #DigitalForensics investigators are fighting back: on Fri, 08 May 2026 19:46:24 GMT]]>@FabMusacchio in the first picture, the lines may be off by measurements inaccuracies. a mirror image depends on a perfect mirror on the physical mirror. and the shadows may be off by camera lens distortion.

]]>https://board.circlewithadot.net/post/https://social.vivaldi.net/users/vekkq/statuses/116540675463557522https://board.circlewithadot.net/post/https://social.vivaldi.net/users/vekkq/statuses/116540675463557522Fri, 08 May 2026 19:46:24 GMT<![CDATA[Reply to #Deepfakes are everywhere, but #DigitalForensics investigators are fighting back: on Fri, 08 May 2026 18:54:01 GMT]]>@mathieu_ @AudeCaussarieu fondamentalement, les AI generatives fonctionnent a l'echelle des pixels d'une image (ou video), et n'ont pas vraiment un model abstrait d'une scene (pas de plan 3D en tete)

C'est pour ca aussi sur les model plus vieux les doigts surnumeraires, les 3e mains mal placees, etc. Meme-si ces erreures la sont plus facilement corrigibles.

]]>https://board.circlewithadot.net/post/https://mstdn.science/users/dryak/statuses/116540469501068902https://board.circlewithadot.net/post/https://mstdn.science/users/dryak/statuses/116540469501068902Fri, 08 May 2026 18:54:01 GMT<![CDATA[Reply to #Deepfakes are everywhere, but #DigitalForensics investigators are fighting back: on Fri, 08 May 2026 17:02:35 GMT]]>@seachaint
Yeah, I noticed that. All the example images have other things about them that are wrong and give them away as fake.

I think the OP wanted to just focus specifically on how to check for lines that should meet at a point, as one kind of objective test we can use, and not get into all the other stuff.

@leah @f4grx @FabMusacchio

]]>https://board.circlewithadot.net/post/https://sunny.garden/users/leadore/statuses/116540031364336549https://board.circlewithadot.net/post/https://sunny.garden/users/leadore/statuses/116540031364336549Fri, 08 May 2026 17:02:35 GMT<![CDATA[Reply to #Deepfakes are everywhere, but #DigitalForensics investigators are fighting back: on Fri, 08 May 2026 15:39:52 GMT]]>@ghoppe @leadore @leah @f4grx @FabMusacchio While that is technically true, the splay of shadows on Earth is negligible and nearly imperceptible in real life. In the example image it's as if the sun is a lamp a few metres away.

]]>https://board.circlewithadot.net/post/https://masto.hackers.town/users/seachaint/statuses/116539706100093094https://board.circlewithadot.net/post/https://masto.hackers.town/users/seachaint/statuses/116539706100093094Fri, 08 May 2026 15:39:52 GMT<![CDATA[Reply to #Deepfakes are everywhere, but #DigitalForensics investigators are fighting back: on Fri, 08 May 2026 13:13:34 GMT]]>@fuzzy @Deixis9 @FabMusacchio It's my original image, but thanks for finding that page, it's a counterfeit t-shirt website that rips off artist designs. I'll try get them to take it down 😕

]]>https://board.circlewithadot.net/post/https://mastodon.ie/users/spellingmistakescostlives/statuses/116539130829449969https://board.circlewithadot.net/post/https://mastodon.ie/users/spellingmistakescostlives/statuses/116539130829449969Fri, 08 May 2026 13:13:34 GMT<![CDATA[Reply to #Deepfakes are everywhere, but #DigitalForensics investigators are fighting back: on Fri, 08 May 2026 12:03:54 GMT]]>@seachaint @leadore @leah @f4grx @FabMusacchio because the sun is at a distance, parallel lines meet at a vanishing point, like train tracks.

]]>https://board.circlewithadot.net/post/https://mastodon.social/users/ghoppe/statuses/116538856868215812https://board.circlewithadot.net/post/https://mastodon.social/users/ghoppe/statuses/116538856868215812Fri, 08 May 2026 12:03:54 GMT<![CDATA[Reply to #Deepfakes are everywhere, but #DigitalForensics investigators are fighting back: on Fri, 08 May 2026 11:29:17 GMT]]>@WPalant

The matching toe isn’t necessarily visible even in a real image. In this case, it’s definitely a human error because they chose an inside toe on the figure and an outside toe on the reflection. That would be an analysis error whether the image was real or generated.

@FabMusacchio

]]>https://board.circlewithadot.net/post/https://beige.party/users/DavidM_yeg/statuses/116538720758782749https://board.circlewithadot.net/post/https://beige.party/users/DavidM_yeg/statuses/116538720758782749Fri, 08 May 2026 11:29:17 GMT<![CDATA[Reply to #Deepfakes are everywhere, but #DigitalForensics investigators are fighting back: on Fri, 08 May 2026 09:30:48 GMT]]>@DavidM_yeg @FabMusacchio To be fair, it’s hard to find matching toes in that picture. AI images are notoriously bad at producing identical reflections, and this one is no exception.

]]>https://board.circlewithadot.net/post/https://infosec.exchange/users/WPalant/statuses/116538254879442500https://board.circlewithadot.net/post/https://infosec.exchange/users/WPalant/statuses/116538254879442500Fri, 08 May 2026 09:30:48 GMT