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Vos câbles fibre optique peuvent servir à vous espionner, et ça marche très bien

Une fibre optique de télécom standard, celle qui passe peut-être à quelques mètres de votre bureau en ce moment, peut être transformée en microphone à distance.

C'est ce qu'ont démontré des chercheurs à la conférence NDSS 2026, le rendez-vous annuel de la sécurité réseau qui s'est tenu à San Diego. Leur démo est carrément flippante. Pas de matériel posé sur place, pas de signal radio détectable, et une qualité audio largement suffisante pour transcrire ce qu'on dit dans une pièce.

Le principe repose sur une technique appelée DAS (Distributed Acoustic Sensing, en français "détection acoustique distribuée"), qui consiste à envoyer un laser dans la fibre depuis une extrémité et à analyser comment la lumière revient.

Quand des ondes sonores frappent le câble, elles le font vibrer de manière minuscule, ce qui modifie le trajet de la lumière. En mesurant ces modifications, on peut reconstituer le son d'origine, comme si la fibre devenait un long micro de plusieurs dizaines de mètres.

Pour booster la sensibilité, les chercheurs ont fabriqué un petit accessoire qu'ils appellent "Sensory Receptor", en gros un cylindre en plastique PET de 65 mm de diamètre autour duquel ils enroulent 15 mètres de fibre. Le cylindre concentre les vibrations et amplifie le signal capté.

Les résultats ? À deux mètres de la fibre, le taux d'erreur sur les mots (le WER, qui mesure combien de mots sont mal transcrits par un système de reconnaissance vocale) descend sous les 20 %. Dans un test grandeur nature mené dans un bureau, avec une cinquantaine de mètres de fibre séparant les deux pièces et le boîtier installé sous un meuble, ils tombent à 9 %.

Quasiment un transcript parfait donc. En bonus ils ont utilisé OpenAI Whisper et NVIDIA Parakeet, deux modèles d'IA de reconnaissance vocale grand public, donc rien d'exotique côté logiciel.

Et le truc qui change tout, c'est l'indétectabilité. Une fibre passive ne consomme pas d'électricité, n'émet aucune onde radio, et passe inaperçue aux détecteurs de mouchards classiques utilisés par les services de contre-espionnage. 

es balayages TSCM (les outils déployés pour chercher des micros cachés dans une pièce sensible) passent à côté. Limite tout de même : il faut être à environ 5 mètres maximum de la fibre, et celle-ci ne doit pas être enterrée trop profondément. Mais dans n'importe quel immeuble de bureaux moderne, où la fibre court partout dans les faux plafonds, ça peut fonctionner !

Source : Hackaday

Microsoft gave Windows 11 Task Manager a Major AI Upgrade, Refreshed Run Dialog & File Explorer Fixes

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Microsoft Releases New Windows 11 ISO Builds 29576.1000 and 28020.1873 for Download

Microsoft has quietly refreshed its Windows Insider Preview ISO download page with two new builds now available for testing: Build 29576.1000 and Build 28020.1873. These releases give Windows Insiders fresh installation media for clean installs, virtual machines, and advanced testing scenarios. The updated ISOs are now live through the official Windows Insider Preview downloads portal, […]

Preciosa To Make Light Feel Like a Living Thing at Milan 2026

Light has always been design’s most underrated material. We talk endlessly about furniture, textiles, and surfaces, but light? It usually plays the supporting role, the thing that makes everything else look good. Preciosa Lighting is quietly changing that conversation, and their latest collection, Drifting Lights, might be the most convincing argument they’ve made yet.

The Czech brand has been doing this long enough to know the difference between novelty and genuine craft. Their heritage is rooted in traditional glassmaking, but what they’ve built with Drifting Lights feels like a very deliberate step forward. Each piece is made up of oblong and square glass panels slotted into a stainless-steel frame that discreetly conceals an LED strip. Inside each panel, the glass has been infused with countless tiny air bubbles. When light passes through, it doesn’t just illuminate the glass. It gets lost in it, scattering through those bubbles in a way that looks less like electricity and more like light deciding where it wants to go.

Designer: Preciousa Lighting

For Milan Design Week 2026, Preciosa is bringing the full Drifting Lights experience to the Tempesta Art Gallery in Brera, and the scale alone is worth paying attention to. The installation spans approximately 30 square metres and features 60 glass panels suspended vertically and horizontally, forming a structure measuring 8.7 by 3.2 by 3 metres. Set against a dark interior, the panels will be animated using 3D spatial mapping and RGBW technology, cycling through colour sequences from red to pink to green. Co-Creative Directors Michael Vasku and Andreas Klug put it plainly: the installation aims at “creating space to slow down, pause and wonder.”

I appreciate that framing, because Milan Design Week is genuinely relentless. Every brand is competing for the loudest moment, the most shareable installation, the boldest statement. There is a real temptation to optimise for the 15-second video clip rather than the actual experience of standing in a room. Preciosa is betting on the opposite, and I think that’s the smarter play. The colour sequence from red to pink to green reads like an emotional arc rather than a tech demo, referencing love, passion, and inner peace. Whether or not you buy the symbolism, you can’t argue with the atmosphere it creates.

A design object earns its place when it works just as well outside a gallery as inside one, and Drifting Lights has clearly been thought through on that level. The panels come in ten sizes, with different metal frame finishes and the option to orient them vertically or horizontally. The same collection can fill a grand hotel lobby or anchor a living room without losing its character. For bespoke projects, Preciosa can apply a painting technique that introduces pigment bubbles into the glass, giving each panel a layer of quiet individuality. The bubbled glass can also be enhanced with their Fused Veil pattern, which shifts the direction of light and adds even more visual complexity.

Under static illumination, Drifting Lights is calm and composed. Switch to dynamic mode and the panels come alive, with light moving from one to the next like ink dispersing through water. The gradients bloom, soften, and recombine. It’s the kind of effect that makes you stay in a room longer than you planned, which is, ultimately, what great lighting is supposed to do.

Preciosa has had a strong run at Fuorisalone in recent years, with recognised installations at Zona Tortona and Euroluce. The move to Tempesta on Foro Buonaparte suits the work well: a contemporary art gallery setting that lets the installation breathe without competing with showroom furniture. It’s a confident choice for a collection that clearly doesn’t need much help making a room feel different. If you’re heading to Milan, the installation runs April 20 to 26 at the Tempesta Art Gallery on Foro Buonaparte, and this one is worth the detour.

The post Preciosa To Make Light Feel Like a Living Thing at Milan 2026 first appeared on Yanko Design.

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