A courthouse in Philadelphia, a hacker conference in Las Vegas and a growing number of British pubs have arrived at the same conclusion this year: if you cannot tell whether a pair of glasses is recording, the safest policy is to keep them out of the room.
The list of places enforcing that is longer than most people realise, and it now runs to more than 47 venues and jurisdictions — courts, gyms, cruise ships, casinos, planes, schools and military bases among them.
What has actually been banned
Philadelphia's First Judicial District barred all smart and AI-integrated eyewear from its buildings effective March 30, with criminal contempt as the enforcement mechanism. That's not a posted request; that's a court's contempt power.
DEF CON, held August 6 to 9 at the Las Vegas Convention Center, banned camera-equipped smart glasses with no exceptions. Organizers explained the reasoning plainly: there is no consistent way to know whether a pair of glasses is recording, and that uncertainty erodes trust.
In the UK, some pubs and theatres have moved to ban Meta's Ray-Ban glasses over covert recording concerns, according to reporting on a growing backlash there. Pubs and theatres aren't regulated venues. They're just places where people expect not to be filmed.
The core problem is the indicator light
Camera glasses have a recording indicator. The question is whether anyone can rely on it — from across a room, at a glance, in the dark, at a distance, on a model you have never seen before. If you can't verify it, the light doesn't do the job it exists to do.
That's the thread running through every one of these bans. None of them are about what the glasses can do. They are about what bystanders can confirm.
Detection apps exist, and they're rough
An Android app called Nearby Glasses, released in March, tries to detect Bluetooth signals broadcast by smart glasses in your vicinity and alert you. Useful in principle, unreliable in practice: Bluetooth advertisements don't cleanly identify what a device is, so a headset or another gadget from the same manufacturer can trigger a false alert.
It also can't tell you whether a detected pair is actually recording — only that something matching the signature may be nearby. Treat it as a rough awareness tool, not proof of anything.
What this means for you
If you own a pair, the practical risk has shifted. Venue rules now vary widely and the penalties at the strict end are serious. Check before you enter a courthouse, a conference, a gym or a theatre, and expect the answer to be no more often than it was a year ago.
If you don't own a pair, the realistic protection isn't technical. In most jurisdictions, recording rules turn on the reasonable expectation of privacy in the location rather than on the device doing the recording, which means the venue's policy is doing more work than any app on your phone.
Where this is heading
The bans are spreading faster than any standard for disclosure. That gap is the story. Manufacturers have shipped a product whose social contract depends on bystanders trusting a small light, and institutions responsible for privacy in their own spaces have started deciding they'd rather not rely on it. Until there's a signal that works at a distance and across brands, expect the list of venues saying no to keep growing.
Image: Sanket Mishra, via Pexels
