bank

blocked

box

business

close

closeup

code

combination

concept

control

detail

dial

element

encryption

equipment

finger

gray

guard

hand

home

illustration

introduces

iron

key

latch

lock

male

man

mechanism

metal

money

number

object

people

person

protect

protection

rectangle

retro

safe

safeguard

safety

secret

secure

security

shape

silver

steel

symbol

technology

unlock

vault