Holdex Finance is an innovative technology project in the field of Fin-Tech and DeFi. The main task is to create a transparent and decentralized platform for highly profitable and secure investments in cryptocurrencies. Thanks to the automated solutions and unique developments, the project team manages to minimize the risks and the number of user errors. The result is that crypto investors get even more profit.
Swap is an in-wallet crypto-to-crypto exchange. Swap allows users to easily exchange one cryptocurrency to the other without leaving their Wallet.
With Swap, users can exchange crypto in a Private Key Wallet or their Trading Account. Swapping from their Private Key Wallet provides users the benefits of a non-custodial, on-chain trade settlement. Swapping from Trading Account provides faster settlement and no network fees.
Investors will be able to earn interest with yield farming, staking, and private investment pools. You will be able to automate your investment processes with our ‘H-APY’ (Holdex Annual Percentage Yield) Scanner and ‘H-ATB’ (Holdex Auto Trading Bot) applications that ideas and projects belong to us.
TokenRecover.recoverERC20(address,uint256) (#1125-1127) ignores return value by IERC20(tokenAddress).transfer(owner(),tokenAmount) (#1126)
Use SafeERC20, or ensure that the transfer/transferFrom return value is checked.
Additional information: link
Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)
Reentrancy in HoldexToken.constructor(string,string,uint8,uint256,address,address) (#1227-1239):
External calls:
- address(feeReceiver_).transfer(msg.value) (#1235)
State variables written after the call(s):
- _mint(tokenOwner,initialBalance_ * 10 ** uint256(decimals_)) (#1237)
- _balances[account] += amount (#372)
- _owner = tokenOwner (#1236)
- _mint(tokenOwner,initialBalance_ * 10 ** uint256(decimals_)) (#1237)
- _totalSupply += amount (#371)
Event emitted after the call(s):
- Transfer(address(0),account,amount) (#373)
- _mint(tokenOwner,initialBalance_ * 10 ** uint256(decimals_)) (#1237)
Apply the check-effects-interactions pattern.
Additional information: link
recoverERC20(address,uint256) should be declared external:
- TokenRecover.recoverERC20(address,uint256) (#1125-1127)
Use the external attribute for functions never called from the contract.
Additional information: link
HoldexToken.constructor(string,string,uint8,uint256,address,address).tokenOwner (#1232) lacks a zero-check on :
- _owner = tokenOwner (#1236)
Check that the address is not zero.
Additional information: link
Address._verifyCallResult(bool,bytes,string) (#652-669) uses assembly
- INLINE ASM (#661-664)
Do not use evm assembly.
Additional information: link
Context._msgData() (#126-129) is never used and should be removed
Remove unused functions.
Additional information: link
solc-0.8.5 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.
Additional information: link
Low level call in Address.functionDelegateCall(address,bytes,string) (#644-650):
- (success,returndata) = target.delegatecall(data) (#648)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence
Additional information: link
Variable Ownable._owner (#1064) is not in mixedCase
Follow the Solidity naming convention.
Additional information: link
Redundant expression "this (#127)" inContext (#121-130)
Remove redundant statements if they congest code but offer no value.
Additional information: link
BscScan page for the token does not contain additional info: website, socials, description, etc.
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
Young tokens have high risks of scam / price dump / death
Young tokens have high risks of scam / price dump / death
Token has a considerable age, but social accounts / website are missing or have few users
Young tokens have high risks of price dump / death
Young tokens have high risks of price dump / death
Token has relatively low CoinGecko rank
Token has relatively low CoinMarketCap rank
Twitter account link seems to be invalid
Unable to find Discord account