Hacker Minted 1 Billion Polkadot Tokens on Ethereum — and Only Got Away With $237K

Apr 14, 2026 · 3 min read

A forged cross-chain proof let an attacker mint 1,000,000,000 fake DOT tokens on Ethereum in a single transaction. Thin liquidity saved Polkadot. Twelve days earlier, Hyperbridge had posted an April Fools' joke about exactly this.