PNG ICO ICNS MORE
Gaming & gambling
3D
Free Game Icons
secure, Authentication, password
Black
64x64
login, secrecy, Golden
Computer & hardware
Exempli Gratia
File, secret
WhiteSmoke
256x256
Mixed
My Secret
envelope, secret, Email
128x128
secret, Book
SaddleBrown
secret, Mask
DarkGray
PNG MORE
Desktop apps
Free Applications Icons
Lock, clef, private
24x24
Log in, private, password
Key, private, login
Human o2
Cryptography, password, Lock
Tan