Twenty4Seven Info
Nine 2 Five is set to introduce their very own token, T4S, enhancing their forex investment offerings by introducing staking pools, telegram games, and introducing a new type of tokenomics in Defi we named Trade-And-Burn.
TrustNet Score
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Summary and Final Words
No crucial issues found
The contract does not contain issues of high or medium criticality. This means that no known vulnerabilities were found in the source code.
Contract owner cannot mint
It is not possible to mint new tokens.
Contract owner cannot blacklist addresses.
It is not possible to lock user funds by blacklisting addresses.
Contract owner cannot set high fees
The fees, if applicable, can be a maximum of 25% or lower. The contract can therefore not be locked. Please take a look in the comment section for more details.
Contract cannot be locked
Owner cannot lock any user funds.
Token cannot be burned
There is no burning within the contract without any allowances
Ownership is not renounced
The owner retains significant control, which could potentially be used to modify key contract parameters.
Scope of Work
This audit encompasses the evaluation of the files listed below, each verified with a SHA-1 Hash. The team referenced above has provided the necessary files for assessment.
The auditing process consists of the following systematic steps:
- Specification Review: Analyze the provided specifications, source code, and instructions to fully understand the smart contract's size, scope, and functionality.
- Manual Code Examination: Conduct a thorough line-by-line review of the source code to identify potential vulnerabilities and areas for improvement.
- Specification Alignment: Ensure that the code accurately implements the provided specifications and intended functionalities.
- Test Coverage Assessment: Evaluate the extent and effectiveness of test cases in covering the codebase, identifying any gaps in testing.
- Symbolic Execution: Analyze the smart contract to determine how various inputs affect execution paths, identifying potential edge cases and vulnerabilities.
- Best Practices Evaluation: Assess the smart contracts against established industry and academic best practices to enhance efficiency, maintainability, and security.
- Actionable Recommendations: Provide detailed, specific, and actionable steps to secure and optimize the smart contracts.
A file with a different Hash has been intentionally or otherwise modified after the security review. A different Hash may indicate a changed condition or potential vulnerability that was not within the scope of this review.
Final Words
The following provides a concise summary of the audit report, accompanied by insightful comments from the auditor. This overview captures the key findings and observations, offering valuable context and clarity.
Ownership Privileges
- Include/Exclude wallets from fees
- Enable/Disable swap and Swapback in the contract
- Update buy and sell fees, but cannot set it above 6%
- Enable Trading but cannot disable it.
- Set AMM pair address, marketing wallet, dev wallet, buyback wallet address
Note - This Audit report consists of a security analysis of the Twenty4Seven Token smart contract. This analysis did not include functional testing (or unit testing) of the contract’s logic. Moreover, we only audited one token contract for the Twenty4Seven team, other contracts associated with the project were not audited by our team. We recommend investors to do their research before investing.
Files and details
Functions
public
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State variables
public
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Total lines
of code
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Capabilities
Hover on items
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Findings and Audit result
medium Issues | 1 findings
Pending
#1 medium Issue
Owner needs to Enable Trading
The trading needs to be enabled by the owner in order for regular users to transfer tokens. On the contrary, the owner can exclude addresses from the fees manually and those addresses will be able to trade tokens. This functionality can be exploited in the following way, For example, there is a presale and the wallets used for the presale can be excluded from fees by the owner. All the tokens obtained can be consolidated into a final wallet address and facilitate trading and selling of the acquired tokens, the last wallet address can be excluded from fees.
low Issues | 3 findings
Pending
#1 low Issue
Local variables shadowing (shadowing-local)
Rename the local variables that shadow another component.
Pending
#2 low Issue
Missing Events Arithmetic (events-maths)
Emit an event for critical parameter changes.
Pending
#3 low Issue
Missing Zero Address Validation (missing-zero-check)
Check that the address is not zero.
optimization Issues | 1 findings
Pending
#1 optimization Issue
Public function that could be declared external (external-function)
Use the `external` attribute for functions never called from the contract.
informational Issues | 4 findings
Pending
#1 informational Issue
Functions that are not used (dead-code)
Remove unused functions.
Pending
#2 informational Issue
Unused state variables (unused-state)
Remove unused state variables.
Pending
#3 informational Issue
Unused return values (unused-return)
Ensure that all the return values of the function calls are used.
Pending
#4 informational Issue
Uninitialized local variables (uninitialized-local)
Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.