This was something i wanted to because i thought it would keep things a little interesting and players on their toes.
Users have vaults to store money.
Vaults give no interest(could be added in), but protect users from getting money stolen from. When a users activates the vault they are required to put in a 4 digit PIN number. This PIN number is to protect them from people hacking in and stealing money out of their vault. Users can change PIN numbers to prevent people from breaking in. If a users hacks a vault a % of money is taken out and placed into their own. Users can deposit or withdraw money from their vault at any time. When hacking a user has up to ten tries in one day and then they are blocked from attempting to hack into a vault for the rest of the day.
Pretty fun mod and my users love it
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ruined.one@hotmail.com