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The $220 million hacker attack event has triggered a rethinking of the core values of Blockchain.
Blockchain security incidents provoke deep reflection in the industry
Recently, a blockchain security incident involving a large amount of funds has attracted widespread attention and discussion within the industry. This incident not only exposed vulnerabilities in the technical implementation of certain projects but also prompted deep reflection on the core value and development direction of blockchain.
Event Review
On May 22, 2025, the largest decentralized exchange in a certain public blockchain ecosystem suffered a hacker attack, resulting in losses of over $220 million. The hacker exploited an integer overflow vulnerability in the smart contract to obtain massive liquidity at a very low cost.
After the incident, the relevant parties took swift action. First, they froze the funds in the hacker's account through a special mechanism of the underlying protocol. Subsequently, they proposed a plan to recover the stolen funds through an on-chain upgrade. This plan was implemented after being approved by the voting of the verification nodes.
Technical Analysis
From a technical perspective, this attack primarily exploited computational vulnerabilities within the smart contract. The hacker triggered an integer overflow issue in the contract by using carefully designed transaction parameters, leading the system to incorrectly estimate the required number of tokens.
What deserves more attention is the post-processing mechanism. The relevant public blockchain has adopted a two-step strategy: first, quickly freezing funds using a blacklist mechanism at the protocol level; then, by introducing a new address alias mechanism, enabling the transfer of funds without the hacker's private key.
Provoking Thoughts
This incident has had far-reaching impacts on both the technical and governance levels, mainly reflected in the following aspects:
Challenged the concept of "code is law". The practice of voting to decide modifications to the Blockchain state stands in stark contrast to the traditional immutable characteristics.
Redefined asset control rights. Even if users hold the private keys, the network can still change asset ownership through collective decision-making, breaking the traditional understanding of "not your keys, not your coins."
It has sparked a discussion on the essence of decentralization. Does the ability to efficiently handle emergencies imply a certain degree of centralization? How do we find a balance between efficiency and decentralization?
Challenged the value positioning of Blockchain. If assets can be freely frozen and transferred, the boundaries between Blockchain and traditional financial systems will become blurred.
It has sparked a reflection on governance mechanisms. Does voting based on token weight truly represent the community's will? How can we prevent the abuse of voting rights?
Future Outlook
This incident is undoubtedly an important milestone in the development of the Blockchain industry. It reminds us that technological innovation must be built on a solid security foundation. At the same time, we must also be wary of practices that undermine long-term value in order to address short-term issues.
In the future, blockchain projects may need to consider more how to find a balance between security, efficiency, and decentralization during their design. Meanwhile, a sound governance mechanism and a clear value orientation will also become key factors for the success of the project.
Overall, the true value of blockchain technology lies not only in its technical characteristics but also in the ideals and beliefs it represents. How to stay true to its original intention in the face of real challenges will be a topic that the entire industry needs to face together.