PNG ICO ICNS MORE
Network & communications
3D
BeOS
Lock, secure
Black
128x128
Computer & hardware
Discovery
realmedia, mime, realplaer
32x32
PNG MORE
Desktop apps
Free Applications Icons
Lock, clef, private
24x24
Log in, private, password
Key, private, login
Protection, secured, private
Unlocked, password, Protection
Human o2
security, Lock, Keyring
DimGray
password, Key, login
Silver
Mixed
Flavour Extended
secure, Lock, private
Goldenrod
48x48
Photography & graphic design
Dark Glass
Key, secure, Folder
OrangeRed
UI
Glaze
secure, Lock, password
Nuvola
pass, Key, secure
Key, secure, password
Maroon
Nuove
Lock, password, secure
Crystal Clear
private, secure, Lock
LightSalmon
File, password, Lock
WhiteSmoke
secure, password, Lock