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Hyperbridge is attacked! One billion Polkadot cross-chain coins were minted out of thin air, and the security alarm sounded again

What is the event A serious security vulnerability occurred in the cross-chain bridge project Hyperbridge. The attacker exploited this vulnerability to mint up to 1 billion bridge version of Polkadot tokens out of thin air on the Ethereum network, and then quickly cashed out, making a profit of approximately US$237,000. This incident once again brought the safety issue of cross-chain bridges to the forefront.

Why it matters This incident caused shock because it pointed directly at one of the most vulnerable links in the DeFi ecosystem - the cross-chain bridge. Cross-chain bridges manage huge amounts of assets, but complex codes and mechanisms make them “fat” in the eyes of hackers. Although the direct loss amount of this attack is not astronomical, it proved the existence of the vulnerability in an extremely dramatic way (minting 1 billion tokens) and shook users' fundamental confidence in the security of cross-chain assets. Each such incident consumes the trust reserves of the entire crypto world.

Impact on retail investors For ordinary users, this is another stern reminder: Cross-chain assets are extremely risky. Before transferring assets through a cross-chain bridge, be sure to carefully evaluate the project party’s security audit records and history. Currently, the price of bridging Polkadot tokens (such as xcDOT) involved in this vulnerability may fluctuate violently, and users holding related assets need to remain vigilant. When exploring a multi-chain ecosystem, it may be a safer strategy to choose mainstream bridges and protocols that have been tested over time and have better security records. No matter which chain you trade on, choosing an exchange with better rates can also help you keep profits. For example, you can go to CoinRebate to compare prices and see which one offers better fee refunds.

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This article was edited by CoinRebate AI, data source: CoinTelegraph