PNG ICO ICNS MORE
Photography & graphic design
3D
Dark Glass
passport, document, password
Black
128x128
Lock, Key, password
DarkGray
UI
Glaze
secure, Lock, password
Goldenrod
Nuvola
pass, Key, secure
Key, secure, password
Maroon
48x48
Mixed
Nuove
Lock, password, secure
Computer & hardware
realistiK Reloaded
password
Silver
Crystal Clear
password, open, private
Gainsboro
File, password, Lock
WhiteSmoke
secure, password, Lock