How is it possible to move ETH out of a non-contract Ethereum address as soon as ETH gets into it?
There is someone, who apparently gave out his private key and public Ethereum address, which has many tokens, one of which (ICX) is worth USD$280K.
So, this address has 0 ETH, but based on what I see, in order to move the ICX token out, the address needs to have a balance of at least 0.00024 ETH.
But then, from what I can see, as soon as ETH gets into this account address, it is immediately moved out, so anyone is prevented from moving the ICX token out, due to the account address not having sufficient ETH.
How is this (the near-instantaneous moving out of ETH from the account) achievable?