TAO [Tao Dao] Token

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

KnowingTaoRebaseBlock.KnowingTaoRebaseBlock_validateTransfer(address,address,uint256) (contracts/Trap/sTaoProtectedBase.sol#26-30) uses a dangerous strict equality:
- sTaoCheckBlock == 0 && _to == Staking && _amount > 0 (contracts/Trap/sTaoProtectedBase.sol#27)
Don't use strict equality to determine if an account has enough Ether or tokens.

Additional information: link

vault() should be declared external:
- VaultOwned.vault() (contracts/Utils/Divine.sol#1322-1324)
Use the external attribute for functions never called from the contract.

Additional information: link

EnumerableSet.getValues(EnumerableSet.AddressSet).addressArray (contracts/Utils/Divine.sol#338) is a local variable never initialized
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

TWAPOracleUpdater._uodateTWAPOracle(address,uint256) (contracts/Utils/Divine.sol#1379-1383) ignores return value by twapOracle.updateTWAP(dexPoolToUpdateFrom_,twapEpochPeriodToUpdate_) (contracts/Utils/Divine.sol#1381)
Ensure that all the return values of the function calls are used.

Additional information: link

VaultOwned.setVault(address) (contracts/Utils/Divine.sol#1313-1317) should emit an event for:
- _vault = vault_ (contracts/Utils/Divine.sol#1314)
Emit an event for critical parameter changes.

Additional information: link

VaultOwned.setVault(address).vault_ (contracts/Utils/Divine.sol#1313) lacks a zero-check on :
- _vault = vault_ (contracts/Utils/Divine.sol#1314)
Check that the address is not zero.

Additional information: link

Reentrancy in TaoToken._beforeTokenTransfer(address,address,uint256) (contracts/TaoToken.sol#32-38):
External calls:
- super._beforeTokenTransfer(_from,_to,_amount) (contracts/TaoToken.sol#33)
- twapOracle.updateTWAP(dexPoolToUpdateFrom_,twapEpochPeriodToUpdate_) (contracts/Utils/Divine.sol#1381)
State variables written after the call(s):
- sTaoRebaseCheck_validateTransfer(_from,_to,_amount) (contracts/TaoToken.sol#35)
- checkedInBlock[_to][sinceStaking] = true (contracts/Trap/sTaoRebaseCheck.sol#23)
- checkedInBlock[_from][sinceStaking] = true (contracts/Trap/sTaoRebaseCheck.sol#30)
- delete checkedInBlock[_from] (contracts/Trap/sTaoRebaseCheck.sol#43)
- sTaoCheck_validateTransfer(_from,_to,_amount) (contracts/TaoToken.sol#36)
- rebase[_to] = rebase[_to].add(_amount) (contracts/Trap/sTaoCheck.sol#24)
- rebase[_from] = 0 (contracts/Trap/sTaoCheck.sol#31)
- sTaoRebaseCheck_validateTransfer(_from,_to,_amount) (contracts/TaoToken.sol#35)
- rebaseInBlockCount[sinceStaking] ++ (contracts/Trap/sTaoRebaseCheck.sol#25)
- rebaseInBlockCount[sinceStaking] ++ (contracts/Trap/sTaoRebaseCheck.sol#32)
- sTaoRebaseCheck_validateTransfer(_from,_to,_amount) (contracts/TaoToken.sol#35)
- sTaoCheckBlock = block.number.toUInt96() (contracts/Trap/sTaoProtectedBase.sol#28)
- sTaoCheck_validateTransfer(_from,_to,_amount) (contracts/TaoToken.sol#36)
- sTaoCheckBlock = block.number.toUInt96() (contracts/Trap/sTaoProtectedBase.sol#28)
Apply the check-effects-interactions pattern.

Additional information: link

ERC20Permit.permit(address,address,uint256,uint256,uint8,bytes32,bytes32) (contracts/Utils/Divine.sol#1217-1238) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(block.timestamp <= deadline,Permit: expired deadline) (contracts/Utils/Divine.sol#1226)
Avoid relying on block.timestamp.

Additional information: link

ERC20Permit.constructor() (contracts/Utils/Divine.sol#1196-1211) uses assembly
- INLINE ASM (contracts/Utils/Divine.sol#1198-1200)
Do not use evm assembly.

Additional information: link

SafeMath.substractPercentage(uint256,uint8) (contracts/Utils/Divine.sol#734-736) is never used and should be removed
Remove unused functions.

Additional information: link

Variable VaultOwned._vault (contracts/Utils/Divine.sol#1311) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (contracts/Utils/Divine.sol#1144)" inContext (contracts/Utils/Divine.sol#1138-1147)
Remove redundant statements if they congest code but offer no value.

Additional information: link

ERC20.ERC20TOKEN_ERC1820_INTERFACE_ID (contracts/Utils/Divine.sol#766) is never used in ERC20Burnable (contracts/Utils/Divine.sol#1154-1183)
Remove unused state variables.

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 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.

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 verify token contract address on the website

Unable to find audit link on the website

Unable to find whitepaper link on the website

Unable to find Telegram link on the website

Unable to find Twitter link on the website

Unable to find token on CoinHunt

Additional information: link

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

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

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