access
app
authentication
authorization
biometric
cellphone
code
data
denied
design
detection
device
display
face
facial
graphic
hand
head
hold
ide
identification
identify
identity
key
man
mobile
person
phone
profile
protect
protection
reader
recognition
recognize
safety
scan
scanner
scanning
security
sensor
smart
smartphone
software
system
technology
unblock
unlock
user
vector
verification