Do CAPTCHAs work and what's the alternative? | Imperva
Jun 29, 2021 · To be fair this is justifiable, as CAPTCHAs don’t ‘technically’ work anymore. They offer little resistance to dedicated bots – the entire reason for a CAPTCHAs existence. ‘CAPTCHA farms’, where malicious actors and scalpers pay human workers to take CAPTCHA tests for $0.18 – $0.94 for every 1,000 CAPTCHAs solved , have been available to spammers for nearly a decade.
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