How to Detect Hidden Cameras in Smart Glasses and Protect Personal Data

Smart glasses with cameras, such as Meta* Ray-Ban*, are becoming increasingly common. According to the company, 7 million such devices were sold in 2025. However, their popularity raises serious privacy concerns. Users can discreetly record others, with vulnerable groups—such as the homeless, service workers, and women—often becoming victims.

Smart glasses can be distinguished from regular ones by several features. In Meta* Ray-Ban* models, the camera is located in the upper left corner of the frame (from the wearer’s perspective), with an LED indicator opposite it that lights up during recording. However, in bright sunlight, it is nearly impossible to notice. Additionally, owners may cover the indicator or disable it, making detection even harder.

Legislation is struggling to keep up with technological advancements, and social norms are still evolving. Experts warn that smart glasses could be used for surveillance at protests, in public restrooms, or even for facial recognition—Meta* already plans to introduce such a feature. In the future, these devices may become even more discreet, further exacerbating privacy threats.

To protect yourself, it’s important to know what smart glasses look like and to be aware of suspicious behavior around you. User awareness can help limit misuse and establish rules for using such gadgets in public spaces.