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Nandha Reddy

Cyber Security | Blo... • 2d

Traditional CAPTCHAs are broken. Here’s what I use instead. As a cybersecurity student, I’ve spent months battling bots on web apps. Those “click all the traffic lights” CAPTCHAs? Bots can solve them faster than we can! So I switched to something better: Proof-of-Work (PoW) CAPTCHA — it’s free, privacy-friendly, and seriously tough on bots. Why it works: No puzzles, no hassle: Users don’t even notice it. Their browser quietly solves a small math puzzle (finding nonce values) in the background. Bots hate it: One puzzle is easy. But 10,000? That’s slow and expensive for bots. No tracking, no ads, no fees: Just pure code. Why traditional CAPTCHAs fail: Bots use AI to crack images or pay humans to solve them for pennies. Honestly, most CAPTCHAs you see today? Bots are breezing through them. Why I love PoW CAPTCHA: You can customize it (thanks to open-source projects like Cap CAPTCHA). You can even add classic CAPTCHAs (math, traffic lights, etc.) on top for extra security, without confusing users. Users aren’t interrupted. Bots can’t scale attacks without burning serious computing power. If you’re tired of bots spamming your forms or scraping your site, this is the future. Curious how it works? Want to know about nonce solving, target hashes, or the real cost for bots? Like, share, or drop your thoughts below! #CybersecurityStudent #WebDev #BotProtection #Tech

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