Technology

60047 readers

2933 users here now

This is a most excellent place for technology news and articles.

Our Rules

Follow the lemmy.world rules.
Only tech related content.
Be excellent to each another!
Mod approved content bots can post up to 10 articles per day.
Threads asking for personal tech support may be deleted.
Politics threads may be removed.
No memes allowed as posts, OK to post as comments.
Only approved bots from the list below, to ask if your bot can be added please contact us.
Check for duplicates before posting, duplicates may be removed

Approved Bots

founded 2 years ago

MODERATORS

[email protected]

787

AI bots now beat 100% of those traffic-image CAPTCHAs (arstechnica.com)

submitted 2 months ago by [email protected] to c/[email protected]

154 comments fedilink hide all child comments

Anyone who has been surfing the web for a while is probably used to clicking through a CAPTCHA grid of street images, identifying everyday objects to prove that they're a human and not an automated bot. Now, though, new research claims that locally run bots using specially trained image-recognition models can match human-level performance in this style of CAPTCHA, achieving a 100 percent success rate despite being decidedly not human.

ETH Zurich PhD student Andreas Plesner and his colleagues' new research, available as a pre-print paper, focuses on Google's ReCAPTCHA v2, which challenges users to identify which street images in a grid contain items like bicycles, crosswalks, mountains, stairs, or traffic lights. Google began phasing that system out years ago in favor of an "invisible" reCAPTCHA v3 that analyzes user interactions rather than offering an explicit challenge.

Despite this, the older reCAPTCHA v2 is still used by millions of websites. And even sites that use the updated reCAPTCHA v3 will sometimes use reCAPTCHA v2 as a fallback when the updated system gives a user a low "human" confidence rating.

(page 2) 50 comments

sorted by: hot top controversial new old

[–] [email protected] 6 points 2 months ago

Well we trained them

[–] [email protected] 5 points 2 months ago

That’s suspicious - I can’t pass 100%. here’s a new captcha for you: make the user do 100 in a row

100% is ai
<50% is dumb “ai”
in between is a person

[–] [email protected] 4 points 2 months ago (2 children)

So...if CAPTCHA are already beaten by bots what's the point if it still exists ? to mock our weakness ?
In the old days CAPTCHA could do its job, but nowadays nah....even crawler/scrapper/meta bots can bypass it easily.
The real question is why do we as real humans still often fail to beat CHAPTCHA? Are we less human? Are we really robots in CHAPTCHA perspective ?

[–] [email protected] 6 points 2 months ago (1 children)

To train Google/Cloudflare's AI tools, and to double check against DDOS. That's it.

[–] [email protected] 4 points 2 months ago (1 children)

So now we're going to have AI training other AIs

load more comments (1 replies)

[–] [email protected] 2 points 2 months ago

Just because it's possible, doesn't mean it's common.

[–] [email protected] 4 points 2 months ago (4 children)

Pro-tip for webscrapers: using AI to solve captchas is a massive waste of effort and resources. Aim to not be presented with a captcha in the first place.

load more comments (4 replies)

[–] [email protected] 3 points 2 months ago

There is a Russian captcha solver bot called xevil that costs under $100 (I think, last time I looked) that has been able to solve nearly all captchas for years. You just have to supply it with relatively expensive proxy IP addresses because Google rate limits solve attempts.

So the title of this article has been true for a long long time. Capatchas are absolutely useless except against poor or uninformed script kiddies.

[–] [email protected] 3 points 2 months ago (1 children)

Our long international nightmare is finally over!

[–] [email protected] 2 points 2 months ago

While a new one has started!

[–] [email protected] 3 points 2 months ago

we have trained them very well

[–] [email protected] 2 points 2 months ago (2 children)

So where's my portable app to do so?

load more comments (2 replies)

load more comments