PNG ICO ICNS MORE
Computer & hardware
3D
Human o2
security, Lock
LightSlateGray
128x128
security, Lock, Keyring
DimGray
Key, security, keychain
Black
Cryptography, password, Lock
Tan
Lock, person, Books
DodgerBlue
Mixed
Flavour Extended
Lock, open
Goldenrod
48x48
secure, Lock, private
Dellipack
vault, Money, Cash
256x256
Photography & graphic design
Dark Glass
Lock
DarkOliveGreen
Lock, Key, password
DarkGray
overlay, Lock
Lock, File
UI
Glaze
Folder, Lock
secure, Lock, password
File, Lock
WhiteSmoke
SteelBlue
64x64
Nuvola
Key, secure, password
Maroon
DarkBlue
Nuove
security, Lock, padlock
LightGray
Lock, password, secure
realistiK Reloaded
Gold
Crystal Clear
password, open, private
Gainsboro
private, secure, Lock
LightSalmon
File, password, Lock