this post was submitted on 07 Oct 2023
230 points (97.1% liked)

Technology

59674 readers
3549 users here now

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


Our Rules


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

Approved Bots


founded 1 year ago
MODERATORS
 

I've actually noticed this in some websites the past ~two months. It's neat to have a captcha that finally doesn't need slowly clicking images to pass through.

you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 12 points 1 year ago

Nothing can stop 100% of bots. The goal with captchas like Turnstile is to use a significant portion of your resources to the point it's expensive and slow to perform an attack.

Turnstile runs many background checks on your browser, so headless browsers automatically become futile.

JavaScript PoW challenges are performed that take up multiple seconds of execution time, memory and CPU. This alone is a deterrent because sequential attacks become extremely long to execute.

Concurrent attacks are still unfeasible because Turnstile ups the difficulty if it detects something is up, and receiving requests from thousands of botnet IPs is bound to trip an alarm.