Thought this was interesting...

Yep, when I was learning PHP (still am really) this was something I had to look at.  There's a lot of ways to protect a site, so far so good, but it's never going to be 100% uncrackable.

Found another on a similar vein...

And a third. Combined, these are the 3 major security holes for web browsers.

A lot of sites will have this covered of course, but it's easy to forget the simple things. I spend at least half my time coding thinking about how I would crack it.

This is an area that I've been ignorant of until I started learning how to use CodeIgniter, and relaized that without knowing it, I've been doing CSRF attacks without knowing that's what I've been doing. I've called it "form spoofing" in the past, and have done it to Wikipedia as a way to scrape data back in the days before their API.

I think a lot of us have done page scraping at one time or other Dave thinking it was only a little naughty