The post Polkadot Exploit: Attacker Mints 1B Fake DOT and Dumps for Profit appeared first on Coinpedia Fintech News
A hacker exploited a vulnerability in the Hyperbridge cross-chain gateway connecting Polkadot to Ethereum. By forging gateway messages and manipulating the token contract’s admin privileges, the attacker created 1 billion unauthorized DOT tokens and sold them on decentralized markets, earning about 108.2 ETH (roughly $237,000) in profit. The incident highlights ongoing risks in cross-chain bridge systems, where flaws in message validation can lead to fake minting and significant losses.