Why win the lottery twice? This is precisely the problem we are dealing with, this is ONLY for low bit puzzles like 66.
A bot that is sniffing mempool transactions (transactions that have not yet been placed on the blockchain and are stored in volatile memory) gets the public key and in minutes the private key with kangaroo, then initiates a transaction with a commission larger, which has a better chance of obtaining confirmations than the "original" transaction
That is the problem with miners which do not acknowledge that RBF is off for a tx. If tx is with RBF off it should be treated as last and valid only.
There is 3 sanario
Without rbf, any one can load Pk and cancel tx ormodify
With rbf, any one can load Pk and generate new tx with higher fee
3rd and last I know how to create tx and relax for sure where coin will move to my assign address
lol. Ok brainless swooping in. Why not just tell people how to do it? No one knows you, so sending private key to you is as just a chance as any other way.
Maybe those who find it will send you a nice chunk of change for helping out. I know I would.