The article presents why blockchain hacking is common in 2021

Blockchain is known to be uncensored and is a hotspot for innovation and a breeding ground for terrorism. Dao, with over $ 150 million in mob, was stolen by hackers and forked skins, making it Ethereum today. Since the inception of the blockchain, various hackers have frequently appeared on stock exchanges, wallets, and dapps. So, what impact will the field of blockchain security have in 2021, and what will happen in the future?

Blockchain hackers solve the theft problem in 2021

Vulnerability of the financial logic of uranium

On October 27, financial confidence was affected. Opponents control the oracle value for yUSD by borrowing DAI from MakerDAO to create multiple yUSD tokens, while also using multiple legacy assets (such as yDAI, yUSDC, yUSDT, and YTUUSD). Following the rise in the value of the yUSD, the protesters increased the value of the yUSD, creating enough credit to lend the bulk of Cream Finance in the Ethereum v1 lending business. And Cream.Finance was also launched by Flash Star on August 30.

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2) Wallet phishing information

This contrasts with the fact that once an incident occurs on a part of the project, the public data structure of the chain allows people to analyze it and know only the in-depth exchanges and the information is not disclosed. . Typically, a swap event occurs when a swap server is hacked and the attacker gains access to a private key on the server's wallet. After the exchange worker received a phishing attack, the attacker gained access to internal processes through the worker's account and followed a procedure such as accessing the key to a gold purse. .

What to do after your property is stolen

The parties generally use the following solutions:

1) immediatelySuspension of token transfer and transaction services in smart contracts; For non-extendable contracts, check the specifics contained in the contract, and block certain contract services to prevent the contract from being attacked again. .

2) to communities at the same timeWarning, to prevent new investors from putting housing in leaky contracts.

3) Contact a third party security company for help and cooperation to investigate the cause of the malfunction.cure diseases.

4) If there is a blacklist in the contract regarding the location of the stolen funds, firstBlock hacker addresses, prevent hackers from exchanging money.

5) Work with security companies and law enforcementreturn stolen goods, and at the same time develop the necessary measures to reduce consumer losses.

So why are security companies screened for malicious use and can hackers use them? In fact, finding a project only takes a few weeks, and the client's time and effort is not limited. Focusing on certain areas of work will take longer to research and take action than research firms.

Second, securing open source code will also lead to increased security.OpenZeppelin code puagIt's open source code written by professionals, and the right numbers are high and safe. Parties only need to add some special features that they want to use according to their ground rules and can write the numbers starting from zero.

Starting with human values, organizations need to determine whether their financial and business models are worth investigating and conducting multiple assessments to eliminate risk.

All in all, the Defi protocol and all the blockchain security issues are critical in preventing critical funds from entering the market. Looking at all the reasons for the Defi incident, the most important thing is that the Defi project is not yet fully impacted and should depend on third party services. The operation of Defi is irreproachable in terms of safety, which is the objective that this track must achieve (especially for centralized cross-chain tracks). I look forward to the next commercialization cycle where the new Defi product will be completed. industry logic!