The Evolution of CAPTCHA

Gone are the days when you had to type in a few jumbled letters and numbers to access a site or profile, because that test doesn't seem to trick the bots anymore. It's not totally a bad thing because in retrospect, I actually sucked at decoding the jumbled letters. I used to confuse the zeros with alphabet 'O' and vice versa. Same with number one and 'l'. And as if that wasn't enough they started adding squiggly lines and eliminating the spaces between the letters!