Questions tagged [hack]
The hack tag has no usage guidance.
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Is the wallet hacked?
I don't understand what happened to these tokens. Has the wallet been hacked?
https://etherscan.io/tx/0x771a1ee2652062e4b4bf55e54292b1a187fb5ae1012ed5df24f5f77b5c7ae315
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ERC20 token stolen from smart contract
I created two tokens on bscscan and also created a smart contract for staking and swapping these tokens but someone called the swapping function and stole tokens from here and transferred to another ...
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Would ERC-4337 allow more fraud?
If Account Abstraction is going to be widely available, wouldn't scammers, just make you sign a smart contract (e.g. pretending to be a DEX or to buy an NFT) while the smart contract is actually an ...
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How much ETC was stolen in the multiple 51% attacks on Ethereum-Classic?
Ethereum Classic was attacked multiple times back in 2020. How much was stolen and which addresses control these stolen funds now? And have they been sold?
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Need help with a hacked MM defi wallet
How do I find software to run on my hacked defi wallet so I’m can beat the hacker to my tokens which he is harvesting from my staking which produces tokens 24/7.
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My Goerli wallet has been drained
I want to open this question from overflow since it was closed and I experience the same problem.
This account "0x87C02eeacB08c11aFBb821798DB2F4cCcd8F9E3d" has been stealing many goerli and ...
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Have any a16z-backed protocols ever been hacked?
This year, we saw the hack by exploit of a Binance bridge and a Ronin bridge due to weak code written by the protocol creators.
a16z Crypto is the most influential DeFi protocol investor in web3, ...
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Reentrancy attack (contract calling external contract to transfer funds)
So basically we have the code of some Curve pool (it's already rugged, just wonder if it was protected against reentrancy). Users deposit their curve pool tokens to this contract and it's locked for ...
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How can I use a reentrancy attack to permanently freeze funds?
If possible, can you please send me the code with as much details as possible? I would like to understand more about it but didn't find useful content on the internet.
Thanks in advance
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Reentrancy attack question
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/access/Ownable.sol";
interface IBank {
function deposit() external payable;
function withdraw(...
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how do I decompile a code that has some bugs inside using bytecode?
i was tried to understand the codes inside a SC on BSC recently and i found some weird codes inside the decompiled section. i know some little solidity programming and tried to use Remix to reverse it ...
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How to ".call" a function of another contract which uses ".call"
So, I'm learning advanced smart contract development. Two days ago, I learned about Reentrancy attacks and then I also created two contracts Protocol.sol (vulnerable contract) + Hacker.sol (attacker ...
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Tracking ip in etherscan
How do you find ip address in an ethereum transaction/etherscan? My ledger wallet was recently compromised and the tokens in my wallet were stolen. Is there anyway i can track the ip address in ...
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Scam wallet token recovery
How to build a code to recover the remaining coins from a hacked wallet
Assume a hacker has compromised the wallet and automatically withdraws some funds how do I recover the remaining funds and there ...
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How to fix vulnerability in solidity contract
I have recently deployed a contract on the BSC mainnet that got drained of all the funds in it, but I can't seem to find where in my contract the loophole is to know how it got drained so it doesn't ...
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How could someone negotiate with the hacker?
I'm reading this article, and quote:
After negotiation, one hacker agreed to return 259+63 ETH
Since only the hacker can control the ETH funds, and no one can lock the ETH. I'm wondering on what ...
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Just got my contract drained- how?
I just got my contract drained, and am trying to understand how. Obviously I'm a noob, played with fire and got burned bad (shouldn't have big sums of money on contracts). I SHOULD have transferred my ...
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Potential signature malleability in Solidity CTF
I am doing a CTF so I don't want to give too much information away. I am pretty sure I can practice signature malleability or otherwise abuse the signer functions to be able to mint tokens given the ...
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The Ethernaut King Challenge
I am trying to pass level 9 of Ethernaut challenges known as the King contract.
My designed contract for hacking the King contract is as follows:
pragma solidity 0.8.0;
contract MaliciousKing {
...
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Is there a way to prevent web3.eth.Contract being hacked/manipulated using from Dev Tool?
When I try to send a contract to make a custom token transfer It can get hacked using Dev Tools. Anyone can hack by going to the dev tools and can manipulate the contract address from javascript in ...
