hello everyone.. Instead cold storage a lockdown mode address or Frozen Storage address could be added to bitcoin? and I have 3 important questions.. I hope you are willing to answer these questions along with the reasons.
1. Attacker might able to steal private key after user make a transaction from special address,but how do you plan to prevent this accident?
2. How do someone veto a transaction which made by attacker where we can verify who's the owner or attacker without compromise owner privacy?
3. Assuming a transaction is reversed, that means blocks would become invalid since it's hash (along with all next blocks) will become invalid? How do you plan to solve this problem?