Effectiveness of IR LEDs for disrupting facial recognition

How effective are wearable accessories using infrared LEDs for disrupting facial recognition?

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It's not something you would be able to rely on all the time. Security cameras that use IR to see in the dark could be blinded by IR LEDs, but cameras can also have IR filters.
- Would something retro-reflective be a better solution?
- Yep.
  
  And there have been examples of camera disruptive devices that use IR and while it can work, it's problematic and inconsistent.

11 comments