PNG ICO ICNS MORE
UI
Pixel
WooFunction Icon set
Lock
DarkGray
32x32
open, Lock
Computer & hardware
Sweetie BasePack
open, Lock, security
16x16
security, Lock
PNG MORE
Lock, security
24x24
security, Lock, open
Desktop apps
Diagona Icons
security, password, Lock
Fugue Icons
Lock, disable
Silk
Go, Lock