#KAIST

Article · September 1, 2026 A $7 smartphone attachment can detect hidden spy cameras in five seconds

KAIST researchers developed SweepLED, a budget clip-on accessory that turns standard phone cameras into automated counter-surveillance scanners. The prototype uses dynamic LED flashes to catch optical lens reflections in five seconds with 94% accuracy.

Article · August 31, 2026 Spy Cam Buster: $7 Phone Clip Finds Hidden Lenses with 94% Accuracy

Commercial spy camera detectors miss nearly 60% of hidden lenses due to misleading glare from screws and plastic. Researchers from KAIST developed SweepLED, a $7 multi-angle phone attachment that automates reflection analysis to pinpoint hidden cameras in five seconds. The open design paves the way for cheap, highly accurate travel privacy tools.