PNG ICO ICNS MORE
Signs & symbols
Smooth
Two Tone Design Set
Unlock, password, security
Chocolate
128x128
security, secure, password
DarkSlateGray
Super Mono Basic
Unlock, Basic, green
Black
48x48
green, Lock, Basic
Lock, red, Basic
Crimson
red, Unlock, Lock
Basic, Unlock, yellow
Basic, yellow, Lock
Lock, Blue, Basic
PNG MORE
34aL volume 3.2 SE
password, Lock, secure
DodgerBlue
24x24
password, secure, login
LightSteelBlue