armoured
bank
banking
box
business
cash
close
code
coding
coins
container
currency
defense
deposit
depository
depot
dial
door
electronic
finance
financial
front
gold
guard
impenetrable
insurance
investment
key
locker
metal
money
number
password
protection
safe box
safe deposit
safety
save
savings
secret
secure
security system
stealing
steel
storage
treasure
treasury
valuables
vault
wealth