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Seems all for not as (others have mentioned) these techniques likely won't work across the board.

I don't really know much anything about this stuff or the cameras that might be used so forgive the noobness of this question, but I've been wondering - what about jamming? Thinking along the lines of super-bright IR (UV?) LEDs flashing in random sequences (i.e. around license plates).

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If the goal is to not draw attention, attaching a bunch of flashing LEDs to yourself is not a good idea.

940nm IREDs are not visible to the human eye but are visible to a CMOS sensor, so that would be pretty easy to rig up without being too noticeable. The main issue is that you would need a lot of them because most security cameras are filtered for IR light and you would have to sufficiently overpower them unless it was night time.

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