Polkadot-based cross-chain resolution Hyperbridge suffered a significant exploit that allowed attackers to mint as much as one billion DOT tokens with out authorization and shortly dump them on Ethereum, as flagged by blockchain safety agency CertiK.
#CertiKInsight 🚨
We’ve seen an exploit on the @hyperbridge gateway contract. https://t.co/h27iDm1JGd
The attacker slipped by way of a solid message to vary the admin of Polkadot token contract on Ethereum and profited ~$237K from minting and promoting 1B tokens.
Keep… pic.twitter.com/3t2n4uq5hy
— CertiK Alert (@CertiKAlert) April 13, 2026
On-chain evaluation signifies the breach occurred on April 13 when attacker managed wallets gained governance entry to the bridge contract. They then minted 1 billion DOT on Ethereum and offered the total quantity inside roughly an hour, inflicting costs to break down from round $1.22 to close zero in impacted swimming pools.
The native Polkadot blockchain was circuitously affected.
DOT fell from $1.23 to $1.17 because the reviews broke, per CoinGecko.
Hyperbridge is a Polkadot interoperability coprocessor designed to allow safe cross-chain communication utilizing cryptographic state and consensus proofs past shared-security parachains.
This can be a creating story. We are going to present updates as extra info turns into obtainable.
