The only legal/ethical uses are:
In recent years, GitHub scammers have pivoted to linking users to Telegram or Discord servers. Once there, you are prompted to download a "web3 scanner" which is actually a wallet drainer. You connect your MetaMask or Phantom wallet, sign a seemingly innocuous transaction, and approve a smart contract that drains your entire wallet. bitcoin private key scanner github
While scanning for truly lost or abandoned keys occupies a legal gray area in some jurisdictions, actively attempting to access a wallet owned by another person without permission is illegal. It is considered theft. Best Practices for Safe Exploration The only legal/ethical uses are: In recent years,
: They create random or sequential private keys (integers between 1 and ~ 107710 to the 77th power sign a seemingly innocuous transaction