Bridged Polkadot Reportedly Hit by Exploit as Attacker Mints 1 Billion DOT Tokens

Polkadot’s (DOT) bridged token on Ethereum has reportedly fallen victim to an exploit. According to reports, an attacker minted 1 billion bridged DOT.

Onchain tracker Lookonchain noted that after this, the attacker dumped the entire supply in a single transaction, netting 108.2 ETH (approximately $237,000).

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Blockchain security firm CertiK flagged the exploit targeting the Hyperbridge gateway contract. An attacker used a forged message to gain unauthorized control. According to the firm, the attacker was able to manipulate the admin role of a Polkadot token contract on Ethereum, enabling the minting of 1 billion tokens.

The attack did not compromise Polkadot’s native relay chain or the DOT token on Polkadot itself. It targeted only the bridged, or wrapped, representation of DOT.

The incident raises fresh concerns about crypto security. Neither Polkadot nor Hyperbridge had issued an official response at the time of writing. This is a developing story, and further details will be updated as more information becomes available.