And since when did it get implemented?I get outdated information telling me 4chan still has slider captchas.
i still get captchas that have a slider
>>1568569Same hereGot one for this post
The former "slider" captchas were like this
>>1568567It was implemented mid december last year. It was briefly preceded by captchas like these:
>>1568602Initially the scheme was to pick out the one which had a different shape, different number of objects or different letters.Then you had to pick the image which had a different number of empty boxes.Then they instructed you to identify the image that has a specific property (e.g. has 1 4-pointed star, has 2 empty boxes)Finally we ended up with the current scheme.Last time I heard, phone users got easier captchas and recurring users get only one simple captcha if any.I don't recall there being a new name for it.
>>1568567>Certainly everything has a name! Burn yourself with a lit cigarette every time you think thisI'll give you two clues:1. There's a hidden field in every one of these forms with a value that's a SHA256-encoded version of the correct slider value preceded by the timestamp of the expiration. 2. Certain "pick the odd man out" puzzles have shapes which are always the odd man out: the triangle with the cookie bite and the half-circle with the smaller half-circle attached to it. These puzzles and the distortions were very carefully designed to resist AI image recognition like the ones buried inside browser extensions (the tensors were encoded into Javascript objects). Because computer vision works VERY differently from animal vision, it's unlikely someone will create a usable model again. This is a devilishly well-made system and it's smarter just to use it than waste time trying to reverse engineer it.
