FYN [AFFYN] Token

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

Contract locking ether found:
Contract AFFYN (#929-1031) has payable functions:
- AFFYN.receive() (#964-966)
But does not have a function to withdraw the ether
Remove the payable attribute or add a withdraw function.

Additional information: link

AFFYN.setMarketingFee(uint256) (#1023-1025) should emit an event for:
- marketingFee = _marketingFee (#1024)
Emit an event for critical parameter changes.

Additional information: link

Reentrancy in AFFYN.constructor() (#946-962):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#951)
State variables written after the call(s):
- _mint(owner(),1000000 * (10 ** _decimals)) (#961)
- _balances[account] = _balances[account].add(amount) (#858)
- excludeFromFees(owner(),true) (#954)
- _isExcludedFromFees[account] = excluded (#973)
- excludeFromFees(address(this),true) (#955)
- _isExcludedFromFees[account] = excluded (#973)
- _mint(owner(),1000000 * (10 ** _decimals)) (#961)
- _totalSupply = _totalSupply.add(amount) (#857)
- uniswapV2Router = _uniswapV2Router (#952)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in AFFYN.constructor() (#946-962):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#951)
Event emitted after the call(s):
- ExcludeFromFees(account,excluded) (#975)
- excludeFromFees(address(this),true) (#955)
- ExcludeFromFees(account,excluded) (#975)
- excludeFromFees(owner(),true) (#954)
- Transfer(address(0),account,amount) (#859)
- _mint(owner(),1000000 * (10 ** _decimals)) (#961)
Apply the check-effects-interactions pattern.

Additional information: link

Context._msgData() (#19-22) is never used and should be removed
ERC20._burn(address,uint256) (#873-881) is never used and should be removed
SafeMath.mod(uint256,uint256) (#527-529) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#543-546) is never used and should be removed
SafeMathInt.abs(int256) (#627-630) is never used and should be removed
SafeMathInt.add(int256,int256) (#618-622) is never used and should be removed
SafeMathInt.div(int256,int256) (#598-604) is never used and should be removed
SafeMathInt.mul(int256,int256) (#586-593) is never used and should be removed
SafeMathInt.sub(int256,int256) (#609-613) is never used and should be removed
SafeMathInt.toUint256Safe(int256) (#633-636) is never used and should be removed
SafeMathUint.toInt256Safe(uint256) (#644-648) is never used and should be removed
Remove unused functions.

Additional information: link

Function IUniswapV2Pair.DOMAIN_SEPARATOR() (#183) is not in mixedCase
Function IUniswapV2Pair.PERMIT_TYPEHASH() (#184) is not in mixedCase
Function IUniswapV2Pair.MINIMUM_LIQUIDITY() (#201) is not in mixedCase
Function IUniswapV2Router01.WETH() (#221) is not in mixedCase
Parameter AFFYN.setMarketingFee(uint256)._marketingFee (#1023) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (#20)" inContext (#14-23)
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 (#226) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#227)
Prevent variables from having similar names.

Additional information: link

AFFYN.constructor() (#946-962) uses literals with too many digits:
- _mint(owner(),1000000 * (10 ** _decimals)) (#961)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

SafeMathInt.MAX_INT256 (#581) is never used in SafeMathInt (#579-637)
Remove unused state variables.

Additional information: link

AFFYN._decimals (#933) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#390-393)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#399-403)
name() should be declared external:
- ERC20.name() (#680-682)
symbol() should be declared external:
- ERC20.symbol() (#688-690)
decimals() should be declared external:
- AFFYN.decimals() (#968-970)
- ERC20.decimals() (#705-707)
totalSupply() should be declared external:
- ERC20.totalSupply() (#712-714)
balanceOf(address) should be declared external:
- ERC20.balanceOf(address) (#719-721)
transfer(address,uint256) should be declared external:
- ERC20.transfer(address,uint256) (#731-734)
allowance(address,address) should be declared external:
- ERC20.allowance(address,address) (#739-741)
approve(address,uint256) should be declared external:
- ERC20.approve(address,uint256) (#750-753)
transferFrom(address,address,uint256) should be declared external:
- ERC20.transferFrom(address,address,uint256) (#768-776)
increaseAllowance(address,uint256) should be declared external:
- ERC20.increaseAllowance(address,uint256) (#790-793)
decreaseAllowance(address,uint256) should be declared external:
- ERC20.decreaseAllowance(address,uint256) (#809-812)
excludeMultipleAccountsFromFees(address[],bool) should be declared external:
- AFFYN.excludeMultipleAccountsFromFees(address[],bool) (#978-984)
isExcludedFromFees(address) should be declared external:
- AFFYN.isExcludedFromFees(address) (#986-988)
Use the external attribute for functions never called from the contract.

Additional information: link

Contract has 0% buy tax and 93% sell tax.
Taxes are extremely high (over 30%)

Additional information: link

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

Average 30d PancakeSwap volume 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.

Number of Binance Smart Chain (BSC) token holders is less than 100. Token is either dead or inactive. Ignore for presale.

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

Token is deployed only at one blockchain

Token has only one trading pair

Unable to find website, listings and other project-related information

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

Additional information: link

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

Token has no active CoinGecko listing / rank

Token has no active CoinMarketCap listing / rank