2fa
abbreviation
access
algorithms
alphabet
authentication
authorization
business
code
computer
confirm
confirmation
device
digit
digital
dynamic
factor
grunge
industry
information
internet
key
login
mail
mobile
network
number
one
online
only
otp
password
pin
privacy
protection
random
rubber
safety
seal
security
sms
stamp
system
time
transaction
two
unique
valid
word
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