10 sats \ 0 replies \ @k00b 21 Sep 2023 \ on: Introducing Proton CAPTCHA | Proton tech
Multiple defenses:
  • Proof of work: Computational challenges with adjustable difficulty.
  • Visual challenges: Multiple visual challenges, including our CERN-inspired particle collision challenge.
  • Privacy-preserving bot detection
Yet another example of PoW in the wild. Maybe the reason PoW never took off before was because it's better paired with other defenses. Hybrid approaches disfavor specialization.
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