May 29, 2023 14:00:00

A problem occurred in which an object that does not exist in this world was specified by CAPTCHA authentication

Google's

reCAPTCHA is famous for ' CAPTCHA ', which is a bot detection system, but various companies and organizations besides Google provide CAPTCHA. One of them, a user of a site that has introduced hCaptcha , has reported that he was instructed to select an object that does not exist in this world.

Captcha Is Asking Users to Identify Objects That Don't Exist
https://www.vice.com/en/article/xgwy5n/captcha-is-asking-users-to-identify-objects-that-dont-exist

hCaptcha is a CAPTCHA service released in 2018 that emphasizes privacy compared to reCAPTCHA. As of 2020, it has a 15% share of the CAPTCHA market and has a track record of being adopted by services such as Discord and Cloudflare.

Market share of 'hCaptcha' to compete with Google's reCAPTCHA exceeds 15% - GIGAZINE

On May 21, 2023, it was reported that multiple users using hCaptcha were instructed to select a mysterious object named 'Yoko'. The tweet below is an example, with various AI-generated images lined up with the message 'Please select all images that contain Yoko'.

This @hCaptcha is too difficult, unless we're expected to assume Yoko is hiding behind the yo-yos? ???? pic.twitter.com/ad4yw4qSN8

— CryptoniteClark (@CryptoniteClark) May 21, 2023

The example image looks like a yo-yo, but only the AI that generated the problem really knows.

Even if there is no problem with the indicated object, there are also tweets that the target to be selected has been greatly distorted and the situation is ``I don't know which one to choose.''

This @hCaptcha being used by @discord is pretty bad.

I keep failing because I'm not sure if I'm supposed to select the images that look like they come from the uncanny valley or not.

I've failed 8 times now and I'm starting to wonder if I'm even human... pic.twitter.com/Ip59UHXdlb

—Shaun Kruger (@shaunkruger) May 22, 2023

There is also a report that a test was issued to find 'robots' in human images generated by AI.

These AI generated Captchas, I have been trying to sign in for 10 minutes
by u/Manicraft1001 in mildly infuriating

In addition, the person in charge of hCaptcha responded to Motherboard 's interview, ``Although most of the tests are working without problems, hCaptcha is used by hundreds of millions of users, and some of them were surprised by the strange tests. It's common to tweet,' he said.