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which also solves the bot problem - by making it more expensive to bot a site.
by chii 2y ago
which also solves the bot problem - by making it more expensive to bot a site.
- reginald78 2y agoSo why not switch directly to proof of work instead of hassling humans?
- ianpurton 2y agoBecause PoW would only slow the attack. Bots networks are often malware running on infected machines, so there's no cost to the hacker. Captcha is supposed to stop the attack altogether.
- poikroequ 2y agoMore and more botnets are being sold as a service. By that, I mean things like DDoS as a Service. So it's not quite correct to say there's no cost to the hacker.
- Nextgrid 2y agoBecause part of the purpose of the captcha (or at least most of their uses on the modern web) is to ensure human time is wasted. It’s “proof of suffering” more than proof of work or proof of payment.