YIN [YIN Finance] Token

Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)

Different versions of Solidity is used:
- Version used: ['>=0.6.0<0.8.0', '^0.7.0', '^0.7.6']
- ^0.7.0 (@openzeppelin/contracts/access/Ownable.sol#3)
- ^0.7.0 (@openzeppelin/contracts/math/SafeMath.sol#3)
- ^0.7.0 (@openzeppelin/contracts/token/ERC20/ERC20.sol#3)
- ^0.7.0 (@openzeppelin/contracts/token/ERC20/IERC20.sol#3)
- >=0.6.0<0.8.0 (@openzeppelin/contracts/utils/Context.sol#3)
- ^0.7.6 (contracts/token/YINToken.sol#2)
Use one Solidity version.

Additional information: link

Context._msgData() (@openzeppelin/contracts/utils/Context.sol#20-23) is never used and should be removed
ERC20._setupDecimals(uint8) (@openzeppelin/contracts/token/ERC20/ERC20.sol#287-289) is never used and should be removed
SafeMath.div(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#135-138) is never used and should be removed
SafeMath.div(uint256,uint256,string) (@openzeppelin/contracts/math/SafeMath.sol#190-193) is never used and should be removed
SafeMath.mod(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#152-155) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (@openzeppelin/contracts/math/SafeMath.sol#210-213) is never used and should be removed
SafeMath.mul(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#116-121) is never used and should be removed
SafeMath.tryAdd(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#24-28) is never used and should be removed
SafeMath.tryDiv(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#60-63) is never used and should be removed
SafeMath.tryMod(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#70-73) is never used and should be removed
SafeMath.tryMul(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#45-53) is never used and should be removed
SafeMath.trySub(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#35-38) is never used and should be removed
Remove unused functions.

Additional information: link

Pragma version^0.7.0 (@openzeppelin/contracts/access/Ownable.sol#3) allows old versions
Pragma version^0.7.0 (@openzeppelin/contracts/math/SafeMath.sol#3) allows old versions
Pragma version^0.7.0 (@openzeppelin/contracts/token/ERC20/ERC20.sol#3) allows old versions
Pragma version^0.7.0 (@openzeppelin/contracts/token/ERC20/IERC20.sol#3) allows old versions
Pragma version>=0.6.0<0.8.0 (@openzeppelin/contracts/utils/Context.sol#3) is too complex
Deploy with any of the following Solidity versions: 0.5.16 - 0.5.17, 0.6.11 - 0.6.12, 0.7.5 - 0.7.6 Use a simple pragma version that allows any of these versions. Consider using the latest version of Solidity for testing.

Additional information: link

Redundant expression "this (@openzeppelin/contracts/utils/Context.sol#21)" inContext (@openzeppelin/contracts/utils/Context.sol#15-24)
Remove redundant statements if they congest code but offer no value.

Additional information: link

renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (@openzeppelin/contracts/access/Ownable.sol#54-57)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (@openzeppelin/contracts/access/Ownable.sol#63-67)
name() should be declared external:
- ERC20.name() (@openzeppelin/contracts/token/ERC20/ERC20.sol#64-66)
symbol() should be declared external:
- ERC20.symbol() (@openzeppelin/contracts/token/ERC20/ERC20.sol#72-74)
decimals() should be declared external:
- ERC20.decimals() (@openzeppelin/contracts/token/ERC20/ERC20.sol#89-91)
totalSupply() should be declared external:
- ERC20.totalSupply() (@openzeppelin/contracts/token/ERC20/ERC20.sol#96-98)
balanceOf(address) should be declared external:
- ERC20.balanceOf(address) (@openzeppelin/contracts/token/ERC20/ERC20.sol#103-105)
transfer(address,uint256) should be declared external:
- ERC20.transfer(address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#115-118)
allowance(address,address) should be declared external:
- ERC20.allowance(address,address) (@openzeppelin/contracts/token/ERC20/ERC20.sol#123-125)
approve(address,uint256) should be declared external:
- ERC20.approve(address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#134-137)
transferFrom(address,address,uint256) should be declared external:
- ERC20.transferFrom(address,address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#152-156)
increaseAllowance(address,uint256) should be declared external:
- ERC20.increaseAllowance(address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#170-173)
decreaseAllowance(address,uint256) should be declared external:
- ERC20.decreaseAllowance(address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#189-192)
Use the external attribute for functions never called from the contract.

Additional information: link

Average PancakeSwap trading volume, liqudity, number of swaps are extremely low. Token seems to be dead.

Number of Binance Smart Chain (BSC) token holders is low.

Token has only one trading pair

Unable to find PancakeSwap trading pair to compute liquidity.

Unable to find PancakeSwap trading pair to compute volume.

Unable to find PancakeSwap trading pair to compute number of swaps.

BscScan page for the token does not contain additional info: website, socials, description, etc.

Additional information: link

Unable to find token on CoinMarketCap

Additional information: link

Unable to find token/project description on the website or on BscScan, CoinMarketCap

Unable to find token contract audit

Unable to find audit link on the website

Unable to find whitepaper link on the website

Unable to find token on CoinHunt

Additional information: link

Young tokens have high risks of price dump / death

Young tokens have high risks of scam / price dump / death

Token has no active CoinMarketCap listing / rank

Young tokens have high risks of price dump / death