Vrynt Token

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

Reentrancy in Vrynt._transfer(address,address,uint256) (Vrynt.sol#187-215):
External calls:
- swapAndCharge() (Vrynt.sol#203)
- pancakeswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (Vrynt.sol#232-238)
External calls sending eth:
- swapAndCharge() (Vrynt.sol#203)
- address(marketingAddress).transfer(bnbBalance.mul(_marketingFee).div(totalFee)) (Vrynt.sol#221)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (Vrynt.sol#214)
- _balances[sender] = _balances[sender].sub(amount) (Vrynt.sol#252)
- _balances[recipient] = _balances[recipient].add(tTransferAmount) (Vrynt.sol#253)
- _balances[address(this)] = _balances[address(this)].add(feeAmount) (Vrynt.sol#256)
- _tokenTransfer(from,to,amount,takeFee) (Vrynt.sol#214)
- _burnFee = _previousBurnFee (Vrynt.sol#172)
- _burnFee = 0 (Vrynt.sol#165)
- _tokenTransfer(from,to,amount,takeFee) (Vrynt.sol#214)
- _marketingFee = _previousMarketingFee (Vrynt.sol#173)
- _marketingFee = 0 (Vrynt.sol#166)
Apply the check-effects-interactions pattern.

Additional information: link

Vrynt.allowance(address,address).owner (Vrynt.sol#95) shadows:
- Ownable.owner() (Ownable.sol#18-20) (function)
Vrynt._approve(address,address,uint256).owner (Vrynt.sol#180) shadows:
- Ownable.owner() (Ownable.sol#18-20) (function)
Rename the local variables that shadow another component.

Additional information: link

Vrynt.swapTokensForEth(uint256) (Vrynt.sol#225-239) has external calls inside a loop: path[1] = pancakeswapV2Router.WETH() (Vrynt.sol#229)
Vrynt.swapTokensForEth(uint256) (Vrynt.sol#225-239) has external calls inside a loop: pancakeswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (Vrynt.sol#232-238)
Vrynt.swapAndCharge() (Vrynt.sol#217-222) has external calls inside a loop: address(marketingAddress).transfer(bnbBalance.mul(_marketingFee).div(totalFee)) (Vrynt.sol#221)
Favor pull over push strategy for external calls.

Additional information: link

Reentrancy in Vrynt._transfer(address,address,uint256) (Vrynt.sol#187-215):
External calls:
- swapAndCharge() (Vrynt.sol#203)
- pancakeswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (Vrynt.sol#232-238)
External calls sending eth:
- swapAndCharge() (Vrynt.sol#203)
- address(marketingAddress).transfer(bnbBalance.mul(_marketingFee).div(totalFee)) (Vrynt.sol#221)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (Vrynt.sol#214)
- _previousBurnFee = _burnFee (Vrynt.sol#162)
- _tokenTransfer(from,to,amount,takeFee) (Vrynt.sol#214)
- _previousMarketingFee = _marketingFee (Vrynt.sol#163)
Reentrancy in Vrynt.constructor() (Vrynt.sol#49-64):
External calls:
- pancakeswapV2Pair = IPancakeswapV2Factory(_pancakeswapV2Router.factory()).createPair(address(this),_pancakeswapV2Router.WETH()) (Vrynt.sol#55-56)
State variables written after the call(s):
- _balances[_msgSender()] = _tTotal (Vrynt.sol#62)
- _isExcludedFromFee[_msgSender()] = true (Vrynt.sol#60)
- _isExcludedFromFee[address(this)] = true (Vrynt.sol#61)
- pancakeswapV2Router = _pancakeswapV2Router (Vrynt.sol#58)
Reentrancy in Vrynt.transferFrom(address,address,uint256) (Vrynt.sol#104-108):
External calls:
- _transfer(sender,recipient,amount) (Vrynt.sol#105)
- pancakeswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (Vrynt.sol#232-238)
External calls sending eth:
- _transfer(sender,recipient,amount) (Vrynt.sol#105)
- address(marketingAddress).transfer(bnbBalance.mul(_marketingFee).div(totalFee)) (Vrynt.sol#221)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,BEP20: transfer amount exceeds allowance)) (Vrynt.sol#106)
- _allowances[owner][spender] = amount (Vrynt.sol#184)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in Vrynt._transfer(address,address,uint256) (Vrynt.sol#187-215):
External calls:
- swapAndCharge() (Vrynt.sol#203)
- pancakeswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (Vrynt.sol#232-238)
External calls sending eth:
- swapAndCharge() (Vrynt.sol#203)
- address(marketingAddress).transfer(bnbBalance.mul(_marketingFee).div(totalFee)) (Vrynt.sol#221)
Event emitted after the call(s):
- Transfer(sender,address(this),feeAmount) (Vrynt.sol#257)
- _tokenTransfer(from,to,amount,takeFee) (Vrynt.sol#214)
- Transfer(sender,recipient,tTransferAmount) (Vrynt.sol#259)
- _tokenTransfer(from,to,amount,takeFee) (Vrynt.sol#214)
Reentrancy in Vrynt.constructor() (Vrynt.sol#49-64):
External calls:
- pancakeswapV2Pair = IPancakeswapV2Factory(_pancakeswapV2Router.factory()).createPair(address(this),_pancakeswapV2Router.WETH()) (Vrynt.sol#55-56)
Event emitted after the call(s):
- Transfer(address(0),owner(),_tTotal) (Vrynt.sol#63)
Reentrancy in Vrynt.transferFrom(address,address,uint256) (Vrynt.sol#104-108):
External calls:
- _transfer(sender,recipient,amount) (Vrynt.sol#105)
- pancakeswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (Vrynt.sol#232-238)
External calls sending eth:
- _transfer(sender,recipient,amount) (Vrynt.sol#105)
- address(marketingAddress).transfer(bnbBalance.mul(_marketingFee).div(totalFee)) (Vrynt.sol#221)
Event emitted after the call(s):
- Approval(owner,spender,amount) (Vrynt.sol#185)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,BEP20: transfer amount exceeds allowance)) (Vrynt.sol#106)
Apply the check-effects-interactions pattern.

Additional information: link

Ownable.unlock() (Ownable.sol#49-54) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(block.timestamp > _lockTime,Contract is locked until 0 days) (Ownable.sol#51)
Avoid relying on block.timestamp.

Additional information: link

Vrynt.lockTheSwap() (Vrynt.sol#43-47) has costly operations inside a loop:
- inSwap = true (Vrynt.sol#44)
Vrynt.lockTheSwap() (Vrynt.sol#43-47) has costly operations inside a loop:
- inSwap = false (Vrynt.sol#46)
Vrynt.removeAllFee() (Vrynt.sol#159-167) has costly operations inside a loop:
- _previousBurnFee = _burnFee (Vrynt.sol#162)
Vrynt.removeAllFee() (Vrynt.sol#159-167) has costly operations inside a loop:
- _previousMarketingFee = _marketingFee (Vrynt.sol#163)
Vrynt.removeAllFee() (Vrynt.sol#159-167) has costly operations inside a loop:
- _burnFee = 0 (Vrynt.sol#165)
Vrynt.removeAllFee() (Vrynt.sol#159-167) has costly operations inside a loop:
- _marketingFee = 0 (Vrynt.sol#166)
Vrynt.restoreAllFee() (Vrynt.sol#171-174) has costly operations inside a loop:
- _burnFee = _previousBurnFee (Vrynt.sol#172)
Vrynt.restoreAllFee() (Vrynt.sol#171-174) has costly operations inside a loop:
- _marketingFee = _previousMarketingFee (Vrynt.sol#173)
Use a local variable to hold the loop computation result.

Additional information: link

Context._msgData() (Context.sol#18-21) is never used and should be removed
SafeMath.div(uint256,uint256,string) (SafeMath.sol#189-194) is never used and should be removed
SafeMath.mod(uint256,uint256) (SafeMath.sol#149-151) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (SafeMath.sol#211-216) is never used and should be removed
SafeMath.tryAdd(uint256,uint256) (SafeMath.sol#20-26) is never used and should be removed
SafeMath.tryDiv(uint256,uint256) (SafeMath.sol#62-67) is never used and should be removed
SafeMath.tryMod(uint256,uint256) (SafeMath.sol#74-79) is never used and should be removed
SafeMath.tryMul(uint256,uint256) (SafeMath.sol#45-55) is never used and should be removed
SafeMath.trySub(uint256,uint256) (SafeMath.sol#33-38) is never used and should be removed
Remove unused functions.

Additional information: link

Vrynt._previousBurnFee (Vrynt.sol#29) is set pre-construction with a non-constant function or state variable:
- _burnFee
Vrynt._previousMarketingFee (Vrynt.sol#32) is set pre-construction with a non-constant function or state variable:
- _marketingFee
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.

Additional information: link

Pragma version^0.8.0 (Context.sol#2) allows old versions
Pragma version^0.8.0 (IBEP20.sol#3) allows old versions
Pragma version^0.8.0 (IPancakeswapV2Factory.sol#3) allows old versions
Pragma version^0.8.0 (IPancakeswapV2Router01.sol#3) allows old versions
Pragma version^0.8.0 (IPancakeswapV2Router02.sol#3) allows old versions
Pragma version^0.8.0 (Ownable.sol#2) allows old versions
Pragma version^0.8.0 (SafeMath.sol#2) allows old versions
Pragma version^0.8.0 (Vrynt.sol#3) allows old versions
solc-0.8.2 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

Function IPancakeswapV2Router01.WETH() (IPancakeswapV2Router01.sol#7) is not in mixedCase
Variable Vrynt._burnFee (Vrynt.sol#28) is not in mixedCase
Variable Vrynt._marketingFee (Vrynt.sol#31) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (Context.sol#19)" inContext (Context.sol#13-23)
Remove redundant statements if they congest code but offer no value.

Additional information: link

Reentrancy in Vrynt._transfer(address,address,uint256) (Vrynt.sol#187-215):
External calls:
- swapAndCharge() (Vrynt.sol#203)
- address(marketingAddress).transfer(bnbBalance.mul(_marketingFee).div(totalFee)) (Vrynt.sol#221)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (Vrynt.sol#214)
- _balances[sender] = _balances[sender].sub(amount) (Vrynt.sol#252)
- _balances[recipient] = _balances[recipient].add(tTransferAmount) (Vrynt.sol#253)
- _balances[address(this)] = _balances[address(this)].add(feeAmount) (Vrynt.sol#256)
- _tokenTransfer(from,to,amount,takeFee) (Vrynt.sol#214)
- _burnFee = _previousBurnFee (Vrynt.sol#172)
- _burnFee = 0 (Vrynt.sol#165)
- _tokenTransfer(from,to,amount,takeFee) (Vrynt.sol#214)
- _marketingFee = _previousMarketingFee (Vrynt.sol#173)
- _marketingFee = 0 (Vrynt.sol#166)
- _tokenTransfer(from,to,amount,takeFee) (Vrynt.sol#214)
- _previousBurnFee = _burnFee (Vrynt.sol#162)
- _tokenTransfer(from,to,amount,takeFee) (Vrynt.sol#214)
- _previousMarketingFee = _marketingFee (Vrynt.sol#163)
Event emitted after the call(s):
- Transfer(sender,address(this),feeAmount) (Vrynt.sol#257)
- _tokenTransfer(from,to,amount,takeFee) (Vrynt.sol#214)
- Transfer(sender,recipient,tTransferAmount) (Vrynt.sol#259)
- _tokenTransfer(from,to,amount,takeFee) (Vrynt.sol#214)
Reentrancy in Vrynt.transferFrom(address,address,uint256) (Vrynt.sol#104-108):
External calls:
- _transfer(sender,recipient,amount) (Vrynt.sol#105)
- address(marketingAddress).transfer(bnbBalance.mul(_marketingFee).div(totalFee)) (Vrynt.sol#221)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,BEP20: transfer amount exceeds allowance)) (Vrynt.sol#106)
- _allowances[owner][spender] = amount (Vrynt.sol#184)
Event emitted after the call(s):
- Approval(owner,spender,amount) (Vrynt.sol#185)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,BEP20: transfer amount exceeds allowance)) (Vrynt.sol#106)
Apply the check-effects-interactions pattern.

Additional information: link

Variable IPancakeswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (IPancakeswapV2Router01.sol#12) is too similar to IPancakeswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (IPancakeswapV2Router01.sol#13)
Prevent variables from having similar names.

Additional information: link

Vrynt.slitherConstructorVariables() (Vrynt.sol#12-264) uses literals with too many digits:
- _tTotal = 100000000 * 10 ** 18 (Vrynt.sol#22)
Vrynt.slitherConstructorVariables() (Vrynt.sol#12-264) uses literals with too many digits:
- numTokensToSwap = 100000000 * 10 ** 18 (Vrynt.sol#36)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

Vrynt.MAX (Vrynt.sol#23) is never used in Vrynt (Vrynt.sol#12-264)
Vrynt.lastTxTimes (Vrynt.sol#37) is never used in Vrynt (Vrynt.sol#12-264)
Remove unused state variables.

Additional information: link

Vrynt._decimals (Vrynt.sol#26) should be constant
Vrynt._name (Vrynt.sol#24) should be constant
Vrynt._symbol (Vrynt.sol#25) should be constant
Vrynt._tTotal (Vrynt.sol#22) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (Ownable.sol#27-30)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (Ownable.sol#32-36)
geUnlockTime() should be declared external:
- Ownable.geUnlockTime() (Ownable.sol#38-40)
lock(uint256) should be declared external:
- Ownable.lock(uint256) (Ownable.sol#42-47)
unlock() should be declared external:
- Ownable.unlock() (Ownable.sol#49-54)
transfer(address,uint256) should be declared external:
- Vrynt.transfer(address,uint256) (Vrynt.sol#90-93)
allowance(address,address) should be declared external:
- Vrynt.allowance(address,address) (Vrynt.sol#95-97)
approve(address,uint256) should be declared external:
- Vrynt.approve(address,uint256) (Vrynt.sol#99-102)
transferFrom(address,address,uint256) should be declared external:
- Vrynt.transferFrom(address,address,uint256) (Vrynt.sol#104-108)
increaseAllowance(address,uint256) should be declared external:
- Vrynt.increaseAllowance(address,uint256) (Vrynt.sol#110-113)
decreaseAllowance(address,uint256) should be declared external:
- Vrynt.decreaseAllowance(address,uint256) (Vrynt.sol#115-118)
sendMarketToken(address[],uint256) should be declared external:
- Vrynt.sendMarketToken(address[],uint256) (Vrynt.sol#241-245)
Use the external attribute for functions never called from the contract.

Additional information: link

Attempt to swap token was unsuccessful. For some reason it is untradeable. If token is not in presale stage and is not traded outside PancakeSwap, then it's a scam

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.

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

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/project description on the website or on BscScan, CoinMarketCap

Unable to find token contract audit

Unable to verify that token and website are owned by the same team (no listings + unable to find contract on website)

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

Unable to find code repository for the project

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

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

Token has no active CoinGecko listing / rank

Token has no active CoinMarketCap listing / rank