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What exactly is a proxy contract and why is there a security vulnerability involved in it?

Proxy, ERC1967Proxy, Transparent and UUPS in-depth explanation PS: This is more like a detailed explanation of https://docs.openzeppelin.com/contracts/5.x/api/proxy with multiple examples and ...
pv0's user avatar
  • 21
0 votes

where does popular bridges keeps their private key in backend in dapps?

If you take security seriously you will use a Hardware Security Module. There are small usb devices, full computers and virtual cloud providers. In my experience some funders use hardware wallets, ...
Ismael's user avatar
  • 30.5k
1 vote

where does popular bridges keeps their private key in backend in dapps?

If is not in an environment variable (which is kinda of the easiest way to store keys) I'd have it in: A) A file with permissions, where only the owner can write/read B) Reference it from another ...
Casareafer's user avatar
0 votes

Slither Tool Error On Contract That Inherit From Openzeppeling

Slither utilizes crytic-compile to compile your contracts. When you provide the contract path, crytic-compile attempts compilation using your installed solc version. However, if solc fails to resolve ...
Steiner254's user avatar
0 votes

NEED help - MEV bots attacking our liquidity pools - how to counter or block the MEV bots?

Since the question was asked about a year ago and no answer mentioned COW Protocol it should not count as marketing, in my opinion. CoW DAO, the developer cooperative behind the decentralised ...
Pavel Fedotov's user avatar
6 votes
Accepted

Can a user impersonate a smart contract address - and use it as an EOA?

If/when the above happens, what if our lucky guesser tries submitting a tx on behalf of the Smart Contract address (say, transferring its ETH balance somewhere), just like they'd do for an EOA public ...
ardislu's user avatar
  • 537
0 votes

Why is my account frozen?

Then this was obviously a scam. I've sent 26000 and when I transferred my ethereum to metamask, there's nothing in there. And I can't seem the access the usdt funds which I was originally trying to ...
Sean's user avatar
  • 11
0 votes

Why is my account frozen?

Red flags! Ethereum accounts can't freeze, gas fees not "unusual," and Trust Wallet wouldn't ask for 3rd party fees. Don't pay the fee! Contact Trust Wallet support directly (official ...
Awais Ahmad's user avatar
0 votes

Does Ethereum ever charge an "unusual funds fee"

These are the steps you can follow: Contact Trust Wallet Support: They'll explain the fee and the deposit. Investigate: See if you recognize the sender's address. Report a Scam (if needed): If it ...
Awais Ahmad's user avatar
1 vote
Accepted

What number of confirmations is considered secure in Polygon?

I've read somewhere that 50 confirmations is generally safe. However there were bigger reorgs in the past (example with 157 blocks), so you may want to increase this number if you want to be super ...
0xSanson's user avatar
  • 3,249

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