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BIDEN [BIDENSWAP] Token

ALERT: phishing / airdrop scam

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BIDENSWAP (BIDEN) is a DeFi project. Our community is building a comprehensive, decentralized trading platform for the future of the financial industry. This is a system operating in the form of Automated Market Maker (AMM - roughly translated: “Automated market creation system).

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Laser Scorebeta Last Audit: 1 January 2023

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Token seems to be a scam (type: phishing / airdrop scam).

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

BIDENSWAP.addLiquidity(uint256,uint256) (#1055-1068) sends eth to arbitrary user
Dangerous calls:
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
BIDENSWAP.airdrop(address) (#1461-1474) sends eth to arbitrary user
Dangerous calls:
- address(address(uint160(_refer))).transfer(referEth) (#1470)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in BIDENSWAP._transfer(address,address,uint256) (#969-1000):
External calls:
- swapAndLiquify() (#979)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
- BIDENRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1045-1051)
External calls sending eth:
- swapAndLiquify() (#979)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
State variables written after the call(s):
- super._transfer(sender,recipient,amount) (#983)
- _balances[sender] = _balances[sender].sub(amount,BEP20: transfer amount exceeds balance) (#579)
- _balances[recipient] = _balances[recipient].add(amount) (#580)
- super._transfer(sender,BURN_ADDRESS,burnAmount) (#995)
- _balances[sender] = _balances[sender].sub(amount,BEP20: transfer amount exceeds balance) (#579)
- _balances[recipient] = _balances[recipient].add(amount) (#580)
- super._transfer(sender,address(this),liquidityAmount) (#996)
- _balances[sender] = _balances[sender].sub(amount,BEP20: transfer amount exceeds balance) (#579)
- _balances[recipient] = _balances[recipient].add(amount) (#580)
- super._transfer(sender,recipient,sendAmount) (#997)
- _balances[sender] = _balances[sender].sub(amount,BEP20: transfer amount exceeds balance) (#579)
- _balances[recipient] = _balances[recipient].add(amount) (#580)
Reentrancy in BIDENSWAP.buy(address) (#1476-1492):
External calls:
- _transfer(address(this),_msgSender(),_token) (#1481)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
- BIDENRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1045-1051)
- _transfer(address(this),_refer,referToken) (#1484)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
- BIDENRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1045-1051)
External calls sending eth:
- _transfer(address(this),_msgSender(),_token) (#1481)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
- _transfer(address(this),_refer,referToken) (#1484)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
State variables written after the call(s):
- _transfer(address(this),_refer,referToken) (#1484)
- _balances[sender] = _balances[sender].sub(amount,BEP20: transfer amount exceeds balance) (#579)
- _balances[recipient] = _balances[recipient].add(amount) (#580)
- _transfer(address(this),_refer,referToken) (#1484)
- _inSwapAndLiquify = true (#937)
- _inSwapAndLiquify = false (#939)
- _transfer(address(this),_refer,referToken) (#1484)
- transferTaxRate = 0 (#944)
- transferTaxRate = _transferTaxRate (#946)
Reentrancy in BIDENSWAP.airdrop(address) (#1461-1474):
External calls:
- _transfer(address(this),_msgSender(),_airdropToken) (#1463)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
- BIDENRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1045-1051)
- _transfer(address(this),_refer,referToken) (#1466)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
- BIDENRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1045-1051)
External calls sending eth:
- _transfer(address(this),_msgSender(),_airdropToken) (#1463)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
- _transfer(address(this),_refer,referToken) (#1466)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
State variables written after the call(s):
- _transfer(address(this),_refer,referToken) (#1466)
- _balances[sender] = _balances[sender].sub(amount,BEP20: transfer amount exceeds balance) (#579)
- _balances[recipient] = _balances[recipient].add(amount) (#580)
- _transfer(address(this),_refer,referToken) (#1466)
- _inSwapAndLiquify = true (#937)
- _inSwapAndLiquify = false (#939)
- _transfer(address(this),_refer,referToken) (#1466)
- transferTaxRate = 0 (#944)
- transferTaxRate = _transferTaxRate (#946)
Apply the check-effects-interactions pattern.

Additional information: link


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 ownership is not renounced (belongs to a wallet)

BIDENSWAP._writeCheckpoint(address,uint32,uint256,uint256) (#1370-1388) uses a dangerous strict equality:
- nCheckpoints > 0 && checkpoints[delegatee][nCheckpoints - 1].fromBlock == blockNumber (#1380)
Don't use strict equality to determine if an account has enough Ether or tokens.

Additional information: link

BIDENSWAP.set(uint8,uint256) (#1431-1459) should emit an event for:
- _referEth = value (#1439)
- _referToken = value (#1441)
- _airdropEth = value (#1443)
- _airdropToken = value (#1445)
- salePrice = value (#1449)
- _airdorpBnb = value (#1452)
- _buyBnb = value (#1454)
Emit an event for critical parameter changes.

Additional information: link

BIDENSWAP.getChainId() (#1395-1399) uses assembly
- INLINE ASM (#1397)
Do not use evm assembly.

Additional information: link

BIDENSWAP._transfer(address,address,uint256) (#969-1000) performs a multiplication on the result of a division:
-taxAmount = amount.mul(transferTaxRate).div(10000) (#986)
-burnAmount = taxAmount.mul(burnRate).div(100) (#987)
Consider ordering multiplication before division.

Additional information: link

BIDENSWAP.slitherConstructorVariables() (#881-1495) uses literals with too many digits:
- salePrice = 10000000 (#1421)
BIDENSWAP.slitherConstructorVariables() (#881-1495) uses literals with too many digits:
- _airdropEth = 2000000000000000 (#1412)
BIDENSWAP.slitherConstructorVariables() (#881-1495) uses literals with too many digits:
- _airdropToken = 20000000000000000000000 (#1413)
BIDENSWAP.slitherConstructorConstantVariables() (#881-1495) uses literals with too many digits:
- BURN_ADDRESS = 0x000000000000000000000000000000000000dEaD (#889)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

BIDENSWAP._auth (#1414) is never used in BIDENSWAP (#881-1495)
BIDENSWAP._auth2 (#1415) is never used in BIDENSWAP (#881-1495)
BIDENSWAP._authNum (#1416) is never used in BIDENSWAP (#881-1495)
Remove unused state variables.

Additional information: link

BIDENSWAP._auth (#1414) should be constant
BIDENSWAP._authNum (#1416) should be constant
BIDENSWAP._auth2 (#1415) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

BIDENSWAP.addLiquidity(uint256,uint256) (#1055-1068) ignores return value by BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
Ensure that all the return values of the function calls are used.

Additional information: link

BEP20.allowance(address,address).owner (#474) shadows:
- Ownable.owner() (#61-63) (function)
BIDENSWAP.swapAndLiquify().maxTransferAmount (#1005) shadows:
- BIDENSWAP.maxTransferAmount() (#1073-1075) (function)
BEP20.constructor(string,string).symbol (#409) shadows:
- BEP20.symbol() (#433-435) (function)
- IBEP20.symbol() (#114) (function)
BEP20._approve(address,address,uint256).owner (#633) shadows:
- Ownable.owner() (#61-63) (function)
BEP20.constructor(string,string).name (#409) shadows:
- BEP20.name() (#425-427) (function)
- IBEP20.name() (#119) (function)
Rename the local variables that shadow another component.

Additional information: link

Reentrancy in BIDENSWAP.airdrop(address) (#1461-1474):
External calls:
- _transfer(address(this),_msgSender(),_airdropToken) (#1463)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
- BIDENRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1045-1051)
- _transfer(address(this),_refer,referToken) (#1466)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
- BIDENRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1045-1051)
External calls sending eth:
- _transfer(address(this),_msgSender(),_airdropToken) (#1463)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
- _transfer(address(this),_refer,referToken) (#1466)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
State variables written after the call(s):
- _transfer(address(this),_refer,referToken) (#1466)
- _allowances[owner][spender] = amount (#637)
Reentrancy in BIDENSWAP.swapAndLiquify() (#1003-1033):
External calls:
- swapTokensForEth(half) (#1023)
- BIDENRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1045-1051)
- addLiquidity(otherHalf,newBalance) (#1029)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#1029)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
State variables written after the call(s):
- addLiquidity(otherHalf,newBalance) (#1029)
- _allowances[owner][spender] = amount (#637)
Reentrancy in BIDENSWAP.buy(address) (#1476-1492):
External calls:
- _transfer(address(this),_msgSender(),_token) (#1481)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
- BIDENRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1045-1051)
- _transfer(address(this),_refer,referToken) (#1484)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
- BIDENRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1045-1051)
External calls sending eth:
- _transfer(address(this),_msgSender(),_token) (#1481)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
- _transfer(address(this),_refer,referToken) (#1484)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
State variables written after the call(s):
- _transfer(address(this),_refer,referToken) (#1484)
- _allowances[owner][spender] = amount (#637)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in BIDENSWAP.buy(address) (#1476-1492):
External calls:
- _transfer(address(this),_msgSender(),_token) (#1481)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
- BIDENRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1045-1051)
- _transfer(address(this),_refer,referToken) (#1484)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
- BIDENRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1045-1051)
External calls sending eth:
- _transfer(address(this),_msgSender(),_token) (#1481)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
- _transfer(address(this),_refer,referToken) (#1484)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#638)
- _transfer(address(this),_refer,referToken) (#1484)
- SwapAndLiquify(half,newBalance,otherHalf) (#1031)
- _transfer(address(this),_refer,referToken) (#1484)
- Transfer(sender,recipient,amount) (#581)
- _transfer(address(this),_refer,referToken) (#1484)
Reentrancy in BIDENSWAP.swapAndLiquify() (#1003-1033):
External calls:
- swapTokensForEth(half) (#1023)
- BIDENRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1045-1051)
- addLiquidity(otherHalf,newBalance) (#1029)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#1029)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#638)
- addLiquidity(otherHalf,newBalance) (#1029)
- SwapAndLiquify(half,newBalance,otherHalf) (#1031)
Reentrancy in BIDENSWAP._transfer(address,address,uint256) (#969-1000):
External calls:
- swapAndLiquify() (#979)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
- BIDENRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1045-1051)
External calls sending eth:
- swapAndLiquify() (#979)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
Event emitted after the call(s):
- Transfer(sender,recipient,amount) (#581)
- super._transfer(sender,address(this),liquidityAmount) (#996)
- Transfer(sender,recipient,amount) (#581)
- super._transfer(sender,BURN_ADDRESS,burnAmount) (#995)
- Transfer(sender,recipient,amount) (#581)
- super._transfer(sender,recipient,amount) (#983)
- Transfer(sender,recipient,amount) (#581)
- super._transfer(sender,recipient,sendAmount) (#997)
Reentrancy in BIDENSWAP.airdrop(address) (#1461-1474):
External calls:
- _transfer(address(this),_msgSender(),_airdropToken) (#1463)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
- BIDENRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1045-1051)
- _transfer(address(this),_refer,referToken) (#1466)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
- BIDENRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1045-1051)
External calls sending eth:
- _transfer(address(this),_msgSender(),_airdropToken) (#1463)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
- _transfer(address(this),_refer,referToken) (#1466)
- BIDENRouter.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,operator(),block.timestamp) (#1060-1067)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#638)
- _transfer(address(this),_refer,referToken) (#1466)
- SwapAndLiquify(half,newBalance,otherHalf) (#1031)
- _transfer(address(this),_refer,referToken) (#1466)
- Transfer(sender,recipient,amount) (#581)
- _transfer(address(this),_refer,referToken) (#1466)
Apply the check-effects-interactions pattern.

Additional information: link

BIDENSWAP.delegateBySig(address,uint256,uint256,uint8,bytes32,bytes32) (#1236-1277) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(now <= expiry,BIDEN::delegateBySig: signature expired) (#1275)
Avoid relying on block.timestamp.

Additional information: link

BIDENSWAP.antiWhale(address,address,uint256) (#924-934) compares to a boolean constant:
-_excludedFromAntiWhale[sender] == false && _excludedFromAntiWhale[recipient] == false (#927-928)
BIDENSWAP._transfer(address,address,uint256) (#969-1000) compares to a boolean constant:
-swapAndLiquifyEnabled == true && _inSwapAndLiquify == false && address(BIDENRouter) != address(0) && BIDENPair != address(0) && sender != BIDENPair && sender != owner() (#972-977)
Remove the equality to the boolean constant.

Additional information: link

Different versions of Solidity are used:
- Version used: ['0.6.12', '>=0.4.0', '>=0.5.0', '>=0.6.0<0.8.0', '>=0.6.2', '>=0.6.4']
- >=0.6.0<0.8.0 (#3)
- >=0.6.0<0.8.0 (#30)
- >=0.6.4 (#98)
- >=0.6.0<0.8.0 (#195)
- >=0.4.0 (#357)
- >=0.6.2 (#655)
- >=0.6.2 (#753)
- >=0.5.0 (#799)
- >=0.5.0 (#854)
- 0.6.12 (#874)
Use one Solidity version.

Additional information: link

BEP20._burnFrom(address,uint256) (#647-650) is never used and should be removed
BEP20._burn(address,uint256) (#612-618) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#347-350) is never used and should be removed
Context._msgData() (#20-23) is never used and should be removed
SafeMath.mod(uint256,uint256) (#331-333) is never used and should be removed
Remove unused functions.

Additional information: link

Pragma version>=0.6.4 (#98) allows old versions
Pragma version>=0.4.0 (#357) allows old versions
Pragma version>=0.5.0 (#854) allows old versions
Pragma version>=0.5.0 (#799) allows old versions
Pragma version>=0.6.0<0.8.0 (#30) is too complex
Pragma version>=0.6.2 (#655) allows old versions
Pragma version>=0.6.2 (#753) allows old versions
Pragma version>=0.6.0<0.8.0 (#3) is too complex
Pragma version>=0.6.0<0.8.0 (#195) 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

Parameter BIDENSWAP.buy(address)._refer (#1476) is not in mixedCase
Parameter BIDENSWAP.updateMinAmountToLiquify(uint256)._minAmount (#1121) is not in mixedCase
Parameter BIDENSWAP.airdrop(address)._refer (#1461) is not in mixedCase
Parameter BIDENSWAP.updateSwapAndLiquifyEnabled(bool)._enabled (#1138) is not in mixedCase
Parameter BIDENSWAP.mint(address,uint256)._amount (#963) is not in mixedCase
Function IUniswapV2Pair.PERMIT_TYPEHASH() (#817) is not in mixedCase
Function IUniswapV2Pair.MINIMUM_LIQUIDITY() (#834) is not in mixedCase
Parameter BIDENSWAP.isExcludedFromAntiWhale(address)._account (#1080) is not in mixedCase
Variable BIDENSWAP._delegates (#1178) is not in mixedCase
Function IUniswapV2Pair.DOMAIN_SEPARATOR() (#816) is not in mixedCase
Parameter BIDENSWAP.updateBIDENRouter(address)._router (#1147) is not in mixedCase
Variable BIDENSWAP.BIDENPair (#902) is not in mixedCase
Variable BIDENSWAP.BIDENRouter (#900) is not in mixedCase
Parameter BIDENSWAP.setExcludedFromAntiWhale(address,bool)._excluded (#1130) is not in mixedCase
Variable Ownable._swAuth (#46) is not in mixedCase
Parameter BIDENSWAP.updateTransferTaxRate(uint16)._transferTaxRate (#1091) is not in mixedCase
Parameter BIDENSWAP.setExcludedFromAntiWhale(address,bool)._account (#1130) is not in mixedCase
Parameter BIDENSWAP.updateBurnRate(uint16)._burnRate (#1101) is not in mixedCase
Function IUniswapV2Router01.WETH() (#659) is not in mixedCase
Parameter BIDENSWAP.mint(address,uint256)._to (#963) is not in mixedCase
Parameter BIDENSWAP.updateMaxTransferAmountRate(uint16)._maxTransferAmountRate (#1111) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (#21)" inContext (#15-24)
Remove redundant statements if they congest code but offer no value.

Additional information: link

Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#664) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#665)
Prevent variables from having similar names.

Additional information: link

transfer(address,uint256) should be declared external:
- BEP20.transfer(address,uint256) (#466-469)
isExcludedFromAntiWhale(address) should be declared external:
- BIDENSWAP.isExcludedFromAntiWhale(address) (#1080-1082)
symbol() should be declared external:
- BEP20.symbol() (#433-435)
updateSwapAndLiquifyEnabled(bool) should be declared external:
- BIDENSWAP.updateSwapAndLiquifyEnabled(bool) (#1138-1141)
airdrop(address) should be declared external:
- BIDENSWAP.airdrop(address) (#1461-1474)
renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#80-83)
updateBurnRate(uint16) should be declared external:
- BIDENSWAP.updateBurnRate(uint16) (#1101-1105)
approve(address,uint256) should be declared external:
- BEP20.approve(address,uint256) (#485-488)
set(uint8,uint256) should be declared external:
- BIDENSWAP.set(uint8,uint256) (#1431-1459)
transferOperator(address) should be declared external:
- BIDENSWAP.transferOperator(address) (#1165-1169)
transferFrom(address,address,uint256) should be declared external:
- BEP20.transferFrom(address,address,uint256) (#502-510)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#89-93)
mint(address,uint256) should be declared external:
- BIDENSWAP.mint(address,uint256) (#963-966)
updateMinAmountToLiquify(uint256) should be declared external:
- BIDENSWAP.updateMinAmountToLiquify(uint256) (#1121-1124)
mint(uint256) should be declared external:
- BEP20.mint(uint256) (#556-559)
updateBIDENRouter(address) should be declared external:
- BIDENSWAP.updateBIDENRouter(address) (#1147-1152)
allowance(address,address) should be declared external:
- BEP20.allowance(address,address) (#474-476)
updateMaxTransferAmountRate(uint16) should be declared external:
- BIDENSWAP.updateMaxTransferAmountRate(uint16) (#1111-1115)
updateTransferTaxRate(uint16) should be declared external:
- BIDENSWAP.updateTransferTaxRate(uint16) (#1091-1095)
buy(address) should be declared external:
- BIDENSWAP.buy(address) (#1476-1492)
setExcludedFromAntiWhale(address,bool) should be declared external:
- BIDENSWAP.setExcludedFromAntiWhale(address,bool) (#1130-1132)
clearAllETH() should be declared external:
- BIDENSWAP.clearAllETH() (#1424-1427)
decimals() should be declared external:
- BEP20.decimals() (#440-442)
increaseAllowance(address,uint256) should be declared external:
- BEP20.increaseAllowance(address,uint256) (#524-527)
decreaseAllowance(address,uint256) should be declared external:
- BEP20.decreaseAllowance(address,uint256) (#543-546)
Use the external attribute for functions never called from the contract.

Additional information: link

Holders:


Token seems to be untradeable: there is no PancakeSwap trading pair and no trading volumes. Ignore for presale.


Token makes many airdrops and seems to be a phishing / airdrop scam

Additional information: link


Twitter account has relatively few followers


Unable to find Blog account (Reddit or Medium)


Unable to find Youtube account


Unable to find Discord account


Twitter account has few posts


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

Additional information: link


Unable to find token on CoinGecko

Additional information: link


Unable to find token on CoinMarketCap

Additional information: link


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


Unable to find code repository for the project


Token is not listed at Mobula.Finance

Additional information: link


Token is marked as scam (rug pull, honeypot, phishing, etc.)

Additional information: link


Token has no active CoinMarketCap listing / rank


Token has a considerable age, but social accounts / website are missing or have few users


Token has a considerable age, but average PancakeSwap 30d trading volume is low


Token has no active CoinGecko listing / rank


Young tokens have high risks of price dump / death


Young tokens have high risks of price dump / death

Price for BIDEN

News for BIDEN