BBT [BUYBACK] Token

BUYBACK._excluded (#634) is never initialized. It is used in:
- BUYBACK._getReflectionRate() (#841-857)
Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.

Additional information: link

BUYBACK.transferAnyERC20Tokens(address,address,uint256) (#938-940) ignores return value by Token(_tokenAddress).transfer(_to,_amount) (#939)
Use SafeERC20, or ensure that the transfer/transferFrom return value is checked.

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

BUYBACK.collectFee(address,uint256,uint256) (#786-839) performs a multiplication on the result of a division:
-buybackv2Fee = amount.mul(_buybackv2Fee).div(10000) (#791)
-_reflectionBalance[buybackv2Address] = _reflectionBalance[buybackv2Address].add(buybackv2Fee.mul(rate)) (#832)
Consider ordering multiplication before division.

Additional information: link

BUYBACK._approve(address,address,uint256).owner (#739) shadows:
- Ownable.owner() (#574-576) (function)
Rename the local variables that shadow another component.

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BUYBACK.setSMarketingFee(uint256) (#904-906) should emit an event for:
- _smarketingFee = fee (#905)
Emit an event for critical parameter changes.

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BUYBACK.TransferETH(address,uint256).recipient (#933) lacks a zero-check on :
- recipient.transfer(amount) (#934)
Check that the address is not zero.

Additional information: link

BUYBACK.getChainId() (#865-871) uses assembly
- INLINE ASM (#867-869)
Do not use evm assembly.

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SafeMath.mod(uint256,uint256,string) (#353-360) is never used and should be removed
Remove unused functions.

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BUYBACK._reflectionTotal (#630) is set pre-construction with a non-constant function or state variable:
- (MAX - (MAX % _tokenTotal))
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.

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solc-0.8.3 is not recommended for deployment
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.

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Low level call in Address._functionCallWithValue(address,bytes,uint256,string) (#511-539):
- (success,returndata) = target.call{value: weiValue}(data) (#520-522)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

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Variable BUYBACK._smarketingFeeTotal (#648) is not in mixedCase
Follow the Solidity naming convention.

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Redundant expression "this (#103)" inContext (#97-106)
Remove redundant statements if they congest code but offer no value.

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Variable BUYBACK.collectFee(address,uint256,uint256).buybackv1Fee (#790) is too similar to BUYBACK.collectFee(address,uint256,uint256).buybackv2Fee (#791)
Prevent variables from having similar names.

Additional information: link

BUYBACK.slitherConstructorVariables() (#616-945) uses literals with too many digits:
- _maxTxAmount = 15000000 * 10 ** 18 (#642)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

BUYBACK._symbol (#621) should be constant
Add the constant attributes to state variables that never change.

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transferAnyERC20Tokens(address,address,uint256) should be declared external:
- BUYBACK.transferAnyERC20Tokens(address,address,uint256) (#938-940)
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.

Token is deployed only at one blockchain

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.

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

Token has a considerable age, but we're still unable to find its website

Token has no active CoinGecko listing / rank

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

Young tokens have high risks of price dump / death