I had never heard of it before. I wouldn't consider myself anywhere near an expert on client-side exploits but still...

I keep up with most tech-related news as well as I can and I had never heard of it until now...

I'd be interested to see how many people actually have heard about it before.

This isn't an exploit, it is a feature of almost every modern browser.

Applying different style to visited links is a feature. The trick to pull the info back to server is an exploit.

I wasn't aware that sharing your browser history with every website that cares to check it was a 'feature'.

I think that was the point...

Most people aren't aware of this.

Hopefully it was a success for you!

Care to point to a wikipedia entry or something on this 'attack'? I can't even access the site.

I assume that it's simply setting styles on links using the ":visited" pseudo-selector, and then either:

1. Using JavaScript to get the rendered style, and thus work out whether you've visited a particular URL, or

2. Setting background images on links which only apply when visited, and checking whether your browser retrieved those images.

It's a rather old and well-known trick.

Ok. Since I couldn't access the site, I didn't even know what it was supposed to be doing... other than 'an old and well-known trick' and something to do with browser history.