Smart Contract Security Audit
Hackers use vulnerabilities to invade the system and cause huge losses to smart contract users
Security Risk
Privacy leak
Smart contracts are visible to all users on the blockchain, including but not limited to resources marked as private, or may cause privacy information leakage.
Transaction overflow and exception
Due to the constraints of the smart contract itself, such as conditional competition, transaction sequence dependence, etc., transaction overflows and exceptions are caused.
Contract failure
Abnormal behaviors caused by unreasonable fault handling mechanisms that may exist in the smart contract code.
Denial of service
The risk of denial of service due to various reasons.
Solution
Function visibility audit
Sensitive functions inherit permission detection and function call permission detection.
Contract restrictions bypass review
To invalidate the contract and delete the address code.
Call stack exhaustion audit
Check the stack height limit, whether the stack is exhausted.
Denial of service review
Too many requests result in contract denial of service.
Service Advantage
He has pre-researched more than one hundred smart contract applications, is familiar with the code writing rules of various smart contracts, and can accurately find code-level vulnerabilities.
The professional security research team has accumulated for a long time and is committed to the research of blockchain security ecology.
Good project quality control, strict control of project links, safety experts online throughout the process, answering user questions in real time.
