Polkadot Bridge Hack Triggers DOT Price Plunge After 1 Billion Token Mint

Polkadot bridge hack headlines hit the market after reports said an exploit on Hyperbridge let an attacker mint one billion bridged DOT on Ethereum, a claim that quickly turned into a tradable shock for DOT. The key nuance is that the reported incident involved Ethereum-side bridged DOT, not native DOT on the Polkadot chain.

Key Points

• CertiK Alert said Hyperbridge's gateway contract was exploited and that a forged message changed the admin of the Polkadot token contract on Ethereum.
• CertiK said the attacker minted and sold bridged DOT for about $237,000, while Lookonchain said the dump brought in 108.2 ETH.
• A single Telegram report claimed DOT fell 7% within minutes, but CoinMarketCap reported a drop of 4% to $1.19.

This article is based on the reported details currently available from CertiK Alert, Lookonchain, and CoinMarketCap, not a protocol postmortem or block-explorer package.

What the reported Polkadot bridge exploit says happened

The exploit claim

CertiK Alert said the incident hit Hyperbridge's gateway contract and that a forged message changed the admin of the Polkadot token contract on Ethereum, which is the clearest primary-source account available in the current reporting set.

The token minting claim

CertiK said the attacker minted and sold 1 billion bridged DOT and estimated profit at about $237,000, while Lookonchain said the tokens were dumped in a single transaction for 108.2 ETH.

CoinMarketCap's recap said the affected asset was bridged DOT on Ethereum rather than native DOT on Polkadot, which points to bridge exposure instead of a reported compromise of the relay chain itself.

Why traders focused on the drop claim

Market sentiment

A single Telegram report claimed DOT fell 7% within minutes, but that move was not independently confirmed in the fetched source set.

CoinMarketCap instead reported that DOT fell 4% to $1.19 as the exploit headlines spread, which is the firmer market reaction data available for publication.

The sell-off also hit an already fragile risk backdrop, with the reported 4% move landing as traders were already tracking macro and geopolitical catalysts in Inflation, Earnings, and Airstrikes: 3 Things That Could Impact Crypto This Week.

Dilution and supply fears

Even though the reported mint involved Ethereum-side bridged DOT, the combination of an unauthorized supply increase and reported proceeds of 108.2 ETH helps explain why traders treated the incident as an immediate liquidity and credibility shock.

What this means for bridge security in the near term

Trust impact

The immediate issue for Polkadot is trust in wrapped asset rails after a bridge incident tied by current reporting to Ethereum-side exposure, not the native chain. That sensitivity fits a broader market conversation about concentrated crypto infrastructure risk, including the custody concerns raised in Bitcoin ETF Assets Face Coinbase Custody Choke Point as $74B Risk Grows.

Next developments to monitor

What matters next is whether Hyperbridge or Polkadot publish an incident notice, containment steps, or a postmortem, because no official statement, exchange notice, or explorer-linked proof was included in the research set used for this report.

For markets, traders will be watching whether DOT can stabilize around $1.19 and whether speculative attention keeps rotating elsewhere, including to themes highlighted in APEMARS' Top Meme Coin Presale 2026 Smashes Past 22.9B Sold Out Tokens While Dogecoin and Buttcoin Rally Hard.

Disclaimer: This content is for informational purposes only and is not financial advice.

Disclaimer: This article is for informational purposes only and does not constitute financial or investment advice. Cryptocurrency and digital asset markets carry significant risk. Always do your own research before making decisions.