This reminds me in a way of the yacht with a system that detects cameras taking a picture of the yacht and sends a beam towards the camera to wash out the image.
Pretty interesting idea. In fact, there are a number of military-related systems to spot sniper scopes (generally optics) with lasers, which I expect is similar to what they used here.
https://petapixel.com/2012/10/28/worlds-largest-private-yach...