PNG ICO ICNS MORE
Signs & symbols
Smooth
Two Tone Design Set
Unlock, password, security
Chocolate
128x128
security, secure, password
DarkSlateGray
Desktop apps
Farm-fresh
password, Change
Black
32x32
PNG MORE
Files & folders
Spirit20
password, input
Lavender
20x20
Mac OS X style
Access, password, car keys
512x512
Shopping & e-commerce
Diagram version 2
Key, password
96x96
Mixed
Basic Set
pass, password, Key
Gray
64x64
Key, password, Lock
OliveDrab
48x48
Network & communications
Oxygen
Log in, password, Lock
Tan
Lock, Unlock, password
LightGray
Keys, password, Lock
delete, Key, password
password
34aL volume 3.2 SE
password, Lock, secure
DodgerBlue
24x24
password, secure, login
LightSteelBlue
Key, Access, password
Carpelinx
password, Key
password, secure, Lock
DarkGray