However, this is not universal.
Different phones use different camera sensors and filters, and not every hidden camera uses infrared illumination.
Likewise, apps claiming to detect hidden cameras through Wi-Fi or magnetic fields can produce false positives and false negatives.
No single smartphone trick should be considered definitive proof that a room is free of surveillance equipment.
What Should You Do If You Actually Find Something Suspicious?
If you discover what appears to be a hidden camera in a changing room, hotel room, bathroom, or other private area, prioritize your
There’s more to discover. Continue to the next page for the rest of this article.
