Proof of Personhood: Crypto's New Shield Against Sybil Attacks

Air drops to wallets claimed by bots before real users can even connect their own wallets. Governance votes swung by thousands of fake accounts. DeFi liquidity programs drained by a single actor running ten thousand addresses.

These aren't theoretical risks, they're the defining friction of every crypto product that tries to treat its users as humans rather than anonymous key-pairs. The underlying problem has a technical name, the sybil attack, and it's been around since the earliest days of peer-to-peer networks.

The emerging solution has a name too: proof of personhood. And the market just decided it matters, with Worldcoin (WLD) up more than 21% in the last 24 hours and Humanity Protocol (H) surging over 34% to become one of CoinGecko's top trending assets.