When I thought about securing forms against spam earlier today it came to my mind, that there's one technique around that's never been used for this purpose as far as I know: SVG (or even canvas). SVG offers so many possibilities to implement a securing method, has there really never been someone to try this? Or does one of my readers know about someone who did?

I mean, it's such a great way to style things of all kind. It could be used to draw simple letters without background patterns like a normal captcha (so it would be way easier to read), one could even draw simple symbols that could be combined with a select box of possible names for that symbol or things like that. Before this method gets broken too, the spammers would have to implement a combination of graphics interpretation software (like they use for captchas right now) and a way to generate a bitmap picture out of SVG first. Sure it wouldn't be so hard to implement the latter, but seriously - it would make us being one step before the spammers again, wouldn't it?

I'm just writing this, because in my opinion we should make interpreting captchas easier for humans again, as the spammers made us go that far, that even humans cannot always read these things.