A small form of resistance against surveillance technology
En una época en que la tecnología se vuelve cada vez más invisible, las gafas inteligentes han comenzado a difuminar la línea entre la vida cotidiana y la vigilancia silenciosa. Un sociólogo y desarrollador aficionado ha respondido con una pequeña aplicación para Android que detecta estos dispositivos a través de señales Bluetooth, ofreciendo no tanto una solución como un espejo: un recordatorio de que la privacidad en los espacios públicos ya no puede darse por sentada. La herramienta, modesta en sus capacidades, refleja una inquietud más profunda sobre quién observa, quién graba y quién decide los límites de lo visible.
- Las gafas inteligentes permiten grabar vídeo de forma casi imperceptible, y ya han aparecido casos de personas filmadas sin consentimiento en calles, consultas y espacios de trabajo.
- Estudiantes demostraron que estos dispositivos pueden integrarse con software de reconocimiento facial disponible en línea, identificando a desconocidos en tiempo real sin que lo sepan.
- Meta niega tener reconocimiento facial activo en sus modelos actuales, pero documentos internos revelan el desarrollo de una función llamada Name Tag que identificaría rostros mediante inteligencia artificial.
- Yves Jeanrenaud desarrolló Nearby Glasses, una app que escanea señales Bluetooth para alertar cuando hay gafas inteligentes cerca, aunque admite que puede generar falsos positivos y no detectar todos los modelos.
- La aplicación no es un escudo técnico sino una llamada de atención: su existencia misma señala que la sociedad empieza a exigir transparencia frente a tecnologías de vigilancia cada vez más cotidianas.
Las gafas inteligentes llevan años perfeccionándose: mejores cámaras, inteligencia artificial integrada, diseños que se confunden con gafas convencionales. Meta lanzó sus Ray-Ban Stories en 2021, con una pequeña luz LED que indicaba cuándo la cámara estaba activa. Los expertos advirtieron desde el principio que esa señal era fácil de ignorar. No tardaron en surgir los problemas: creadores de contenido grabando a desconocidos en la calle, trabajadores del sector servicios filmando a sus clientes, y un experimento universitario que demostró cómo estas gafas podían combinarse con software de reconocimiento facial para identificar a personas que simplemente pasaban por la acera.
Meta insiste en que sus modelos actuales no incluyen reconocimiento facial. Sin embargo, documentos internos han revelado que la compañía trabaja en una función llamada Name Tag, capaz de identificar rostros y mostrar información sobre ellos a través de la inteligencia artificial. La función no está disponible aún, pero su sola existencia ha reabierto el debate sobre privacidad y vigilancia en espacios públicos.
Fue en este contexto donde Yves Jeanrenaud, sociólogo y desarrollador aficionado, creó Nearby Glasses, una aplicación para Android que escanea señales Bluetooth y avisa al usuario cuando detecta la firma de unas gafas inteligentes. Él mismo la describe como 'una pequeña forma de resistencia'. Disponible en Google Play y GitHub, la app funciona en segundo plano y registra lo que encuentra, aunque Jeanrenaud reconoce sus límites: puede generar falsas alarmas y no garantiza detectar todos los modelos del mercado.
Más que una solución técnica, Nearby Glasses es un gesto simbólico. Representa la conciencia creciente de que la tecnología portátil tiene un coste en privacidad que aún no hemos terminado de calcular. Las gafas seguirán llegando. La pregunta es si seremos capaces de verlas venir.
Smart glasses are coming. Each year they get smarter—better cameras, faster processors, artificial intelligence that can analyze what you're looking at in real time, information projected directly onto the lens. They're sleek, they're wearable, they're almost invisible. And that's precisely the problem.
Meta released the first Ray-Ban Stories in 2021. You could photograph, record video, listen to music without touching your phone. A small LED lit up when the camera was active. Experts noted immediately that the light was easy to miss. In public spaces, in crowds, in moments when someone's attention was elsewhere, the camera could be rolling and nobody would know.
What followed was predictable and troubling. Videos appeared on social media of content creators filming strangers on the street without permission. Massage therapists and other service workers were caught recording clients. A group of students conducted an experiment that demonstrated how these glasses could be paired with external facial recognition software—the kind available online—to identify people walking past and pull up public information about them. Meta has insisted its current models don't include facial recognition. But the experiment proved the capability wasn't far away. More recently, internal documents revealed the company is developing a feature called Name Tag, designed to identify people by their face and display information about them through AI. It's not available yet. The possibility alone has reignited the privacy debate.
Into this landscape stepped Yves Jeanrenaud, a sociologist and amateur developer. He built Nearby Glasses, an Android application that alerts users when smart glasses might be nearby. He calls it "a small form of resistance against surveillance technology." The app works by scanning Bluetooth signals—the constant low-level transmissions that smart glasses and other devices emit to connect with phones and computers. When Nearby Glasses detects the Bluetooth signature of a smart glasses manufacturer, it sends a notification: "Smart Glasses are probably nearby." Download it from Google Play or GitHub, turn on the scan, let it run in the background. It keeps a technical log of what it finds.
Jeanrenaud is honest about the limitations. The app can produce false positives—a VR headset might trigger an alert. It can't guarantee it will catch every model of smart glasses. It's not a shield. It's a mirror. He designed it to raise awareness, to make people conscious that the technology exists and is present, that surveillance can be casual and ambient and hard to see.
What Nearby Glasses represents is something larger than a technical fix. It's a signal that people are paying attention. It's an acknowledgment that the convenience of wearable technology comes with a cost that hasn't been fully reckoned. The glasses are coming. The question now is whether we'll see them coming.
Citas Notables
A small form of resistance against surveillance technology— Yves Jeanrenaud, creator of Nearby Glasses
La Conversación del Hearth Otra perspectiva de la historia
Why did someone feel compelled to build this app? What's the actual threat here?
The threat is visibility. Smart glasses let you record without anyone knowing. A small LED isn't enough warning. People have already been filmed without consent—in the street, in private service settings. The technology exists. It's being used. An app that detects it is someone saying: this matters.
But Meta says their glasses don't have facial recognition built in.
Not yet. But students proved it's trivial to add. And Meta's own internal work on something called Name Tag shows they're thinking about it. The capability is almost here. The app is a way of saying: we see what's coming.
Can the app actually protect people?
No. It's not a lock. It's an alarm. It tells you something might be nearby. The creator is clear about that. It can miss things, it can give false alarms. What it does is make the invisible visible—it reminds you that you're being watched, or could be.
Is this just paranoia?
People have already been recorded without consent. That's not paranoia. That's what happened. The app is a response to something real.
What happens next?
The glasses keep getting better. The features keep expanding. The question is whether society decides this is acceptable, or whether pressure builds for actual regulation—for laws about consent, about what these devices can do, about who gets to see what.