PNG ICO ICNS MORE
Mixed
3D
Flavour Extended
secure, Lock, private
Goldenrod
48x48
Photography & graphic design
Dark Glass
Key, secure, Folder
OrangeRed
128x128
UI
Glaze
secure, Lock, password
Pixel
Vaga
Log in, secure, password
SandyBrown
16x16
Lock, secure
BurlyWood
PNG MORE
Twotiny
Evelope, Lock, mail
Black
Signs & symbols
Smooth
34aL volume 3.2 SE
password, Lock, secure
DodgerBlue
24x24
password, secure, login
LightSteelBlue
Computer & hardware
ASP.NET icons
Lock, password, secure
SaddleBrown
DRF
security, safety, secure
32x32
Carpelinx
password, secure, Lock
DarkGray
Desktop apps
KDE Crystal Diamond
File, locked, secure
Snow
Nuvola
pass, Key, secure
Key, secure, password
Maroon
Nuove
Vista Inspirate
secure, Lock, File
Silver
64x64
Crystal Clear
private, secure, Lock
LightSalmon
File, password, Lock
WhiteSmoke
secure, password, Lock
Mini
login, secure, Lock
list, Keys, secure
AliceBlue
Silk
locked, Safe, Lock