Distorted-letter CAPTCHAs are outdated: expect a wave of LLM-adversarial CAPTCHAs

voooooogel · x · 2026-09-11

The author notes that sites defending their infrastructure against LLM abuse spend significant effort CAPTCHA-spamming attackers, which he argues works well. He quips that distorted-letter CAPTCHAs are hilariously outdated — better get used to sliding crocs around — and expects more LLM-adversarial CAPTCHAs going forward.

Related event: Adversarial captchas emerge as a new defense against AI agents(4 posts)→

Original post →

More from Safety

Safety channel →