Training AIs to Solve CAPTCHAs https://www.schneier.com/blog/archives/2026/10/training-ais-to-solve-captchas.html
Schneier on SecurityTraining AIs to Solve CAPTCHAs - Schneier on SecurityInteresting research: Abstract: Vision-language models (VLMs) can solve visual CAPTCHAs without task-specific training, but the agents built on them approach every challenge from scratch. For such an agent, the hundredth instance of a familiar puzzle costs as much time and compute as the first. Specialized detectors invert the trade-off, answering in milliseconds but only for categories they were