QUACK [RichQUACK.com] Token

RichQuackV2.addLiquidity(uint256,uint256) (#1086-1099) sends eth to arbitrary user
Dangerous calls:
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1091-1098)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in RichQuackV2._transfer(address,address,uint256) (#999-1043):
External calls:
- swapAndLiquify(contractTokenBalance) (#1030)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1091-1098)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1077-1083)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#1030)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1091-1098)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (#1042)
- _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity) (#955)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1133)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1124)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#871)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1144)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1125)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1135)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1145)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#873)
- _tokenTransfer(from,to,amount,takeFee) (#1042)
- _rTotal = _rTotal.sub(rFee) (#910)
- _tokenTransfer(from,to,amount,takeFee) (#1042)
- _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity) (#957)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#1143)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#870)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#1134)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#872)
Apply the check-effects-interactions pattern.

Additional information: link

Contract ownership is not renounced (belongs to a wallet)

Combination 1: Reentrancy vulnerabilities + Functions that send Ether to arbitraty destination. Usual for scams. May be justified by some complex mechanics (e.g. rebase, reflections). DYOR & manual audit are advised.

Contract name (RichQUACK.com) contains non-alphanumeric characters.
Not a direct threat, but may indicate unreliable intentions of developer. Non-alphanumeric chars (,.;!#*&") are extremely rare among low risk tokens.

Not a direct threat, but may indicate unreliable intentions of developer. Widespread names (e.g. Elon, King, Moon, Doge) are common among meme-tokens and scams. The allow to gain free hype and attract unexperienced investors.

RichQuackV2._rTotal (#700) is set pre-construction with a non-constant function or state variable:
- (MAX - (MAX % _tTotal))
RichQuackV2._previousLiquidityFee (#711) is set pre-construction with a non-constant function or state variable:
- _liquidityFee
RichQuackV2._previousTaxFee (#708) is set pre-construction with a non-constant function or state variable:
- _taxFee
Remove any initialization of state variables via non-constant state variables or function calls. If variables must be set upon contract deployment, locate initialization in the constructor instead.

Additional information: link

Reentrancy in RichQuackV2._transfer(address,address,uint256) (#999-1043):
External calls:
- swapAndLiquify(contractTokenBalance) (#1030)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1091-1098)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1077-1083)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#1030)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1091-1098)
Event emitted after the call(s):
- Transfer(sender,recipient,tTransferAmount) (#1128)
- _tokenTransfer(from,to,amount,takeFee) (#1042)
- Transfer(sender,recipient,tTransferAmount) (#1138)
- _tokenTransfer(from,to,amount,takeFee) (#1042)
- Transfer(sender,recipient,tTransferAmount) (#1148)
- _tokenTransfer(from,to,amount,takeFee) (#1042)
- Transfer(sender,recipient,tTransferAmount) (#876)
- _tokenTransfer(from,to,amount,takeFee) (#1042)
Reentrancy in RichQuackV2.transferFrom(address,address,uint256) (#795-799):
External calls:
- _transfer(sender,recipient,amount) (#796)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1091-1098)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1077-1083)
External calls sending eth:
- _transfer(sender,recipient,amount) (#796)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1091-1098)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#996)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#797)
Reentrancy in RichQuackV2.swapAndLiquify(uint256) (#1045-1066):
External calls:
- swapTokensForEth(half) (#1057)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1077-1083)
- addLiquidity(otherHalf,newBalance) (#1063)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1091-1098)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#1063)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1091-1098)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#996)
- addLiquidity(otherHalf,newBalance) (#1063)
- SwapAndLiquify(half,newBalance,otherHalf) (#1065)
Apply the check-effects-interactions pattern.

Additional information: link

Address.isContract(address) (#268-277) uses assembly
- INLINE ASM (#275)
Address._functionCallWithValue(address,bytes,uint256,string) (#361-382) uses assembly
- INLINE ASM (#374-377)
Do not use evm assembly.

Additional information: link

Parameter RichQuackV2.calculateLiquidityFee(uint256)._amount (#966) is not in mixedCase
Parameter RichQuackV2.calculateTaxFee(uint256)._amount (#960) is not in mixedCase
Function IUniswapV2Pair.PERMIT_TYPEHASH() (#508) is not in mixedCase
Function IUniswapV2Pair.MINIMUM_LIQUIDITY() (#525) is not in mixedCase
Variable RichQuackV2._taxFee (#707) is not in mixedCase
Function IUniswapV2Pair.DOMAIN_SEPARATOR() (#507) is not in mixedCase
Variable RichQuackV2._liquidityFee (#710) is not in mixedCase
Parameter RichQuackV2.setSwapAndLiquifyEnabled(bool)._enabled (#901) is not in mixedCase
Function IUniswapV2Router01.WETH() (#547) is not in mixedCase
Variable RichQuackV2._maxTxAmount (#719) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (#241)" inContext (#235-244)
Remove redundant statements if they congest code but offer no value.

Additional information: link

Reentrancy in RichQuackV2.swapAndLiquify(uint256) (#1045-1066):
External calls:
- swapTokensForEth(half) (#1057)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1077-1083)
- addLiquidity(otherHalf,newBalance) (#1063)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1091-1098)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#1063)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1091-1098)
State variables written after the call(s):
- addLiquidity(otherHalf,newBalance) (#1063)
- _allowances[owner][spender] = amount (#995)
Reentrancy in RichQuackV2._transfer(address,address,uint256) (#999-1043):
External calls:
- swapAndLiquify(contractTokenBalance) (#1030)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1091-1098)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1077-1083)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#1030)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1091-1098)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (#1042)
- _liquidityFee = _previousLiquidityFee (#984)
- _liquidityFee = 0 (#979)
- _tokenTransfer(from,to,amount,takeFee) (#1042)
- _previousLiquidityFee = _liquidityFee (#976)
- _tokenTransfer(from,to,amount,takeFee) (#1042)
- _previousTaxFee = _taxFee (#975)
- _tokenTransfer(from,to,amount,takeFee) (#1042)
- _tFeeTotal = _tFeeTotal.add(tFee) (#911)
- _tokenTransfer(from,to,amount,takeFee) (#1042)
- _taxFee = _previousTaxFee (#983)
- _taxFee = 0 (#978)
Reentrancy in RichQuackV2.setRouterAddress(address) (#754-758):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#756)
State variables written after the call(s):
- uniswapV2Router = _uniswapV2Router (#757)
Reentrancy in RichQuackV2.transferFrom(address,address,uint256) (#795-799):
External calls:
- _transfer(sender,recipient,amount) (#796)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1091-1098)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1077-1083)
External calls sending eth:
- _transfer(sender,recipient,amount) (#796)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1091-1098)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#797)
- _allowances[owner][spender] = amount (#995)
Apply the check-effects-interactions pattern.

Additional information: link

RichQuackV2.includeInReward(address) (#856-867) has costly operations inside a loop:
- _excluded.pop() (#863)
Use a local variable to hold the loop computation result.

Additional information: link

Address.sendValue(address,uint256) (#295-301) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (#346-348) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#229-232) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (#356-359) is never used and should be removed
Context._msgData() (#240-243) is never used and should be removed
SafeMath.mod(uint256,uint256) (#213-215) is never used and should be removed
Address._functionCallWithValue(address,bytes,uint256,string) (#361-382) is never used and should be removed
Address.isContract(address) (#268-277) is never used and should be removed
Address.functionCall(address,bytes,string) (#331-333) is never used and should be removed
Address.functionCall(address,bytes) (#321-323) is never used and should be removed
Remove unused functions.

Additional information: link

Low level call in Address.sendValue(address,uint256) (#295-301):
- (success) = recipient.call{value: amount}() (#299)
Low level call in Address._functionCallWithValue(address,bytes,uint256,string) (#361-382):
- (success,returndata) = target.call{value: weiValue}(data) (#365)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Variable RichQuackV2._transferFromExcluded(address,address,uint256).rTransferAmount (#1142) is too similar to RichQuackV2._transferStandard(address,address,uint256).tTransferAmount (#1123)
Variable RichQuackV2._transferStandard(address,address,uint256).rTransferAmount (#1123) is too similar to RichQuackV2._getTValues(uint256).tTransferAmount (#923)
Variable RichQuackV2.reflectionFromToken(uint256,bool).rTransferAmount (#834) is too similar to RichQuackV2._transferBothExcluded(address,address,uint256).tTransferAmount (#869)
Variable RichQuackV2._transferBothExcluded(address,address,uint256).rTransferAmount (#869) is too similar to RichQuackV2._transferBothExcluded(address,address,uint256).tTransferAmount (#869)
Variable RichQuackV2._transferStandard(address,address,uint256).rTransferAmount (#1123) is too similar to RichQuackV2._transferToExcluded(address,address,uint256).tTransferAmount (#1132)
Variable RichQuackV2._transferBothExcluded(address,address,uint256).rTransferAmount (#869) is too similar to RichQuackV2._transferStandard(address,address,uint256).tTransferAmount (#1123)
Variable RichQuackV2._transferToExcluded(address,address,uint256).rTransferAmount (#1132) is too similar to RichQuackV2._getValues(uint256).tTransferAmount (#915)
Variable RichQuackV2._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#931) is too similar to RichQuackV2._getTValues(uint256).tTransferAmount (#923)
Variable RichQuackV2._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#931) is too similar to RichQuackV2._transferStandard(address,address,uint256).tTransferAmount (#1123)
Variable RichQuackV2._transferToExcluded(address,address,uint256).rTransferAmount (#1132) is too similar to RichQuackV2._transferBothExcluded(address,address,uint256).tTransferAmount (#869)
Variable RichQuackV2.reflectionFromToken(uint256,bool).rTransferAmount (#834) is too similar to RichQuackV2._getValues(uint256).tTransferAmount (#915)
Variable RichQuackV2._getValues(uint256).rTransferAmount (#916) is too similar to RichQuackV2._transferToExcluded(address,address,uint256).tTransferAmount (#1132)
Variable RichQuackV2._transferFromExcluded(address,address,uint256).rTransferAmount (#1142) is too similar to RichQuackV2._transferFromExcluded(address,address,uint256).tTransferAmount (#1142)
Variable RichQuackV2._getValues(uint256).rTransferAmount (#916) is too similar to RichQuackV2._getValues(uint256).tTransferAmount (#915)
Variable RichQuackV2.reflectionFromToken(uint256,bool).rTransferAmount (#834) is too similar to RichQuackV2._getTValues(uint256).tTransferAmount (#923)
Variable RichQuackV2._transferToExcluded(address,address,uint256).rTransferAmount (#1132) is too similar to RichQuackV2._transferStandard(address,address,uint256).tTransferAmount (#1123)
Variable RichQuackV2._transferFromExcluded(address,address,uint256).rTransferAmount (#1142) is too similar to RichQuackV2._getTValues(uint256).tTransferAmount (#923)
Variable RichQuackV2._getValues(uint256).rTransferAmount (#916) is too similar to RichQuackV2._transferBothExcluded(address,address,uint256).tTransferAmount (#869)
Variable RichQuackV2._transferStandard(address,address,uint256).rTransferAmount (#1123) is too similar to RichQuackV2._transferStandard(address,address,uint256).tTransferAmount (#1123)
Variable RichQuackV2._transferBothExcluded(address,address,uint256).rTransferAmount (#869) is too similar to RichQuackV2._getValues(uint256).tTransferAmount (#915)
Variable RichQuackV2._transferToExcluded(address,address,uint256).rTransferAmount (#1132) is too similar to RichQuackV2._getTValues(uint256).tTransferAmount (#923)
Variable RichQuackV2._transferStandard(address,address,uint256).rTransferAmount (#1123) is too similar to RichQuackV2._transferBothExcluded(address,address,uint256).tTransferAmount (#869)
Variable RichQuackV2._transferFromExcluded(address,address,uint256).rTransferAmount (#1142) is too similar to RichQuackV2._transferBothExcluded(address,address,uint256).tTransferAmount (#869)
Variable RichQuackV2._transferBothExcluded(address,address,uint256).rTransferAmount (#869) is too similar to RichQuackV2._transferFromExcluded(address,address,uint256).tTransferAmount (#1142)
Variable RichQuackV2._transferBothExcluded(address,address,uint256).rTransferAmount (#869) is too similar to RichQuackV2._transferToExcluded(address,address,uint256).tTransferAmount (#1132)
Variable RichQuackV2._getValues(uint256).rTransferAmount (#916) is too similar to RichQuackV2._transferFromExcluded(address,address,uint256).tTransferAmount (#1142)
Variable RichQuackV2._transferFromExcluded(address,address,uint256).rTransferAmount (#1142) is too similar to RichQuackV2._getValues(uint256).tTransferAmount (#915)
Variable RichQuackV2.reflectionFromToken(uint256,bool).rTransferAmount (#834) is too similar to RichQuackV2._transferStandard(address,address,uint256).tTransferAmount (#1123)
Variable RichQuackV2._transferBothExcluded(address,address,uint256).rTransferAmount (#869) is too similar to RichQuackV2._getTValues(uint256).tTransferAmount (#923)
Variable RichQuackV2._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#931) is too similar to RichQuackV2._getValues(uint256).tTransferAmount (#915)
Variable RichQuackV2._getValues(uint256).rTransferAmount (#916) is too similar to RichQuackV2._getTValues(uint256).tTransferAmount (#923)
Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#552) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#553)
Variable RichQuackV2.reflectionFromToken(uint256,bool).rTransferAmount (#834) is too similar to RichQuackV2._transferFromExcluded(address,address,uint256).tTransferAmount (#1142)
Variable RichQuackV2._transferToExcluded(address,address,uint256).rTransferAmount (#1132) is too similar to RichQuackV2._transferFromExcluded(address,address,uint256).tTransferAmount (#1142)
Variable RichQuackV2._transferFromExcluded(address,address,uint256).rTransferAmount (#1142) is too similar to RichQuackV2._transferToExcluded(address,address,uint256).tTransferAmount (#1132)
Variable RichQuackV2._transferToExcluded(address,address,uint256).rTransferAmount (#1132) is too similar to RichQuackV2._transferToExcluded(address,address,uint256).tTransferAmount (#1132)
Variable RichQuackV2._transferStandard(address,address,uint256).rTransferAmount (#1123) is too similar to RichQuackV2._getValues(uint256).tTransferAmount (#915)
Variable RichQuackV2._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#931) is too similar to RichQuackV2._transferToExcluded(address,address,uint256).tTransferAmount (#1132)
Variable RichQuackV2._transferStandard(address,address,uint256).rTransferAmount (#1123) is too similar to RichQuackV2._transferFromExcluded(address,address,uint256).tTransferAmount (#1142)
Variable RichQuackV2._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#931) is too similar to RichQuackV2._transferFromExcluded(address,address,uint256).tTransferAmount (#1142)
Variable RichQuackV2._getValues(uint256).rTransferAmount (#916) is too similar to RichQuackV2._transferStandard(address,address,uint256).tTransferAmount (#1123)
Variable RichQuackV2._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#931) is too similar to RichQuackV2._transferBothExcluded(address,address,uint256).tTransferAmount (#869)
Variable RichQuackV2.reflectionFromToken(uint256,bool).rTransferAmount (#834) is too similar to RichQuackV2._transferToExcluded(address,address,uint256).tTransferAmount (#1132)
Prevent variables from having similar names.

Additional information: link

RichQuackV2.slitherConstructorVariables() (#685-1155) uses literals with too many digits:
- _tTotal = 100000000000 * 10 ** 6 * 10 ** 9 (#699)
RichQuackV2.slitherConstructorVariables() (#685-1155) uses literals with too many digits:
- numTokensSellToAddToLiquidity = 50000000 * 10 ** 6 * 10 ** 9 (#720)
RichQuackV2.slitherConstructorVariables() (#685-1155) uses literals with too many digits:
- _maxTxAmount = 500000000 * 10 ** 6 * 10 ** 9 (#719)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

RichQuackV2._name (#703) should be constant
RichQuackV2._decimals (#705) should be constant
RichQuackV2._symbol (#704) should be constant
RichQuackV2._tTotal (#699) should be constant
RichQuackV2.numTokensSellToAddToLiquidity (#720) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

isExcludedFromFee(address) should be declared external:
- RichQuackV2.isExcludedFromFee(address) (#987-989)
transferFrom(address,address,uint256) should be declared external:
- RichQuackV2.transferFrom(address,address,uint256) (#795-799)
isExcludedFromReward(address) should be declared external:
- RichQuackV2.isExcludedFromReward(address) (#811-813)
renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#435-438)
approve(address,uint256) should be declared external:
- RichQuackV2.approve(address,uint256) (#790-793)
reflectionFromToken(uint256,bool) should be declared external:
- RichQuackV2.reflectionFromToken(uint256,bool) (#828-837)
decimals() should be declared external:
- RichQuackV2.decimals() (#768-770)
name() should be declared external:
- RichQuackV2.name() (#760-762)
increaseAllowance(address,uint256) should be declared external:
- RichQuackV2.increaseAllowance(address,uint256) (#801-804)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#444-448)
geUnlockTime() should be declared external:
- Ownable.geUnlockTime() (#450-452)
excludeFromFee(address) should be declared external:
- RichQuackV2.excludeFromFee(address) (#879-881)
transfer(address,uint256) should be declared external:
- RichQuackV2.transfer(address,uint256) (#781-784)
includeInFee(address) should be declared external:
- RichQuackV2.includeInFee(address) (#883-885)
excludeFromReward(address) should be declared external:
- RichQuackV2.excludeFromReward(address) (#845-854)
allowance(address,address) should be declared external:
- RichQuackV2.allowance(address,address) (#786-788)
unlock() should be declared external:
- Ownable.unlock() (#463-468)
deliver(uint256) should be declared external:
- RichQuackV2.deliver(uint256) (#819-826)
lock(uint256) should be declared external:
- Ownable.lock(uint256) (#455-460)
setSwapAndLiquifyEnabled(bool) should be declared external:
- RichQuackV2.setSwapAndLiquifyEnabled(bool) (#901-904)
decreaseAllowance(address,uint256) should be declared external:
- RichQuackV2.decreaseAllowance(address,uint256) (#806-809)
symbol() should be declared external:
- RichQuackV2.symbol() (#764-766)
totalSupply() should be declared external:
- RichQuackV2.totalSupply() (#772-774)
totalFees() should be declared external:
- RichQuackV2.totalFees() (#815-817)
setRouterAddress(address) should be declared external:
- RichQuackV2.setRouterAddress(address) (#754-758)
Use the external attribute for functions never called from the contract.

Additional information: link

RichQuackV2.addLiquidity(uint256,uint256) (#1086-1099) ignores return value by uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1091-1098)
Ensure that all the return values of the function calls are used.

Additional information: link

RichQuackV2.allowance(address,address).owner (#786) shadows:
- Ownable.owner() (#416-418) (function)
RichQuackV2._approve(address,address,uint256).owner (#991) shadows:
- Ownable.owner() (#416-418) (function)
Rename the local variables that shadow another component.

Additional information: link

RichQuackV2.setMaxTxPercent(uint256) (#895-899) should emit an event for:
- _maxTxAmount = _tTotal.mul(maxTxPercent).div(10 ** 2) (#896-898)
RichQuackV2.setTaxFeePercent(uint256) (#887-889) should emit an event for:
- _taxFee = taxFee (#888)
RichQuackV2.setLiquidityFeePercent(uint256) (#891-893) should emit an event for:
- _liquidityFee = liquidityFee (#892)
Emit an event for critical parameter changes.

Additional information: link

Ownable.unlock() (#463-468) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(now > _lockTime,Contract is locked until 7 days) (#465)
Avoid relying on block.timestamp.

Additional information: link

Contract has 12% buy tax and 11% sell tax.
Taxes are suspiciously high (over 10%) and contract ownership is not renounced. Token has a high risk of becoming a honeypot.

Average 30d PancakeSwap liquidity is less than $100. Token is either dead or inactive.

Average 30d number of PancakeSwap swaps is less than 1. Token is either dead or inactive.

Token is deployed only at one blockchain

Unable to find whitepaper link on the website

Unable to find token on CoinHunt

Additional information: link

Unable to find code repository for the project