Polkadot $DOT has crashed -5% in just 5 minutes, wiping out $20 million in market cap. $728k in DOT longs were quickly liquidated. This follows reports that Polkadot has been exploited. The attacker allegedly minted over 1 billion $DOT and dumped it all in a single transaction for 108.2 ETH ($237,000). #Polkadot #PolkadotDAO