[yeahdef]

I have seen this a lot lately. I am curious to understand how these are used and/or what benefit they provide?

[Festro]

I've not seen this before. Looks more like visual artefacting from a graphics processing error to me on first glance.

Where was this specific ad? Might try to find one in the wild myself?

If it is a QR code it seems like maybe some kind of proprietary watermarking tech to track ads for some very specific purpose. My phone either can't lock onto it or can't read it.

[yeahdef]

I see them all the time. Here’s an example on drudgereport. https://imgur.com/a/hOl9x2m

I am using an iPhone 13 browsing via chrome. iOS 17.0

[yeahdef]

Also occurs in safari

[mattl]

What happens if you take a photo of the ad? Does it takes you to the website?

[rolph]

drive by exploits