banrays
Security and privacy
camera detection
SHOW HN2025
How HN took it
16 positive, 24 neutral or asking, 0 mixed, 10 critical, out of 50 comments about the project. Thread score +0.16.
Idea: 12 for, 6 againstPrivacy: 0 for, 2 againstDesign: 2 for, 0 againstPerformance: 0 for, 1 againstDocs: 1 for, 0 against
The thread, comment by comment
Each row is a top-level comment and its replies, in HN's order. Select a cell to open that comment on HN.
positive neutral or mixed critical about another commenter or something else the maker
What HN said
What people liked
Interesting, useful privacy idea
From 3 comments
A much-needed project. Making yourself invisible to such privacy-invasive devices will be the need of the day. Of the two approaches you mentioned, blocking/jamming the specific…
wowamit on HNPretty neat idea! I love the BLE detection approach, would be pretty amazing if this works. I'll be following this with some interest!
arionmiles on HNIt's a lovely idea.
kanak8278 on HN
Retro-reflection approach is clever
From 2 comments
Super interesting project, at first I thought it would be a naive implementation of YOLO but I wasn't aware about retro-reflections. The papers he linked in the GH discuss very…
egeres on HNWhen I worked for a big Hollywood media conglomerate, there was a project to detect cameras in theaters. (There was a piracy problem where people would record the movie on a…
fortran77 on HN
Objections
Detecting only at power-on or pairing may not catch active recording
From 1 comment
Sorry I'm still confused. Do you have a reliable way to detect if a smart glass is recording or not? I never used smart-glasses regularly, but wouldn't it be "on" all the time if…
thrdbndndn on HN
IR flooding is weak against modern cameras
From 1 comment
One of my future ideas was to have the detection trigger turning a bunch of IR LEDs on to do just this! I've only tested it a little bit against my phone camera (with around 5…
nullpxl on HN
Requests
Clip-on form factor that works with own glasses
From 1 comment
Sorry for not responding for your request for tech advise and instead commenting on the idea: 1. I would want this. 2. If possible, if the detecting device could be clipped on…
sillyfluke on HN
Ways to cause false positives tested
From 1 comment
Putting myself in the shoes of a qa for a second... What is the cheapest way for me to trigger a false positive on such a detection device? And what can we do about it? Rinse and…
mcny on HN
Questions
Can it detect recording in use, not just at boot?
From 1 comment
Sorry I'm still confused. Do you have a reliable way to detect if a smart glass is recording or not? I never used smart-glasses regularly, but wouldn't it be "on" all the time if…
thrdbndndn on HN
Alternatives named
Counter-sniper optic detectors and IR filter detection for theatre cameras
From 2 comments
> most things which would need to be protected from hidden cameras would be stationary Counter-sniper systems that scan for reflections from optics have existed for twenty years…
anilakar on HNWhen I worked for a big Hollywood media conglomerate, there was a project to detect cameras in theaters. (There was a piracy problem where people would record the movie on a…
fortran77 on HN