What could be the impact of changing System Account’s password and if this same account is used for running every SharePoint Services (CA, search, performancepoint, excel services, etc.) and application pools? I understand this is a bad practice to use System Account for each of these services and application pools but recently I have seen a SharePoint farm using System Account as a one man army.
*Note: System Account is a domain account.
Thanks amir. noted your points.