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.
Polkadot has acknowledged an issue impacting Hyperbridge’s Ethereum gateway contract, noting that the exploit is limited in scope.
In a statement, the team said the incident affects only DOT tokens on Ethereum that were bridged via Hyperbridge. It emphasized that assets within the broader Polkadot ecosystem remain unaffected, as do DOT tokens transferred through other bridging solutions.
“Polkadot, its parachains, and native DOT remain secure and unaffected. Hyperbridge has been paused while the issue is investigated,” the post read.
The incident raises fresh concerns about crypto security. This is a developing story, and further details will be updated as more information becomes available.
