英文關鍵字
datum
security
computer
technology
cyberspace
privacy
protection
safety
connection
firewall
futuristic
lock
concept
secure
communication
digital
electronic
hacker
network
password
protect
encryption
background
attack
crime
cyber
database
information
processor
safe
screen
shield
software
system
access
hologram
spyware
business
circuit
board
code
global
horizontal
idea
innovation
internet
laptop
people