PNG ICO ICNS MORE
Mixed
Smooth
Copenhagen
Safe, secure, Lock
Peru
64x64
Education & science
Basic Set 2
safety, Lock, secure
DarkGray
UI
Snowish
security, private, Lock
LightGray
128x128
Lock, secure, Safe
WhiteSmoke
Business & finance
Primo
Lock
SteelBlue
Lock, Unlock
DarkSlateGray
PNG ICO MORE
Lock, Folder
SkyBlue
Music & multimedia
Impressions General Icons
Black
256x256
Stroke
Sigma
release, Lock
400x400
Diagram
96x96
Lock, Safe
open, secure, Lock
Desktop apps
Farm-fresh
secure, Lock
DarkGoldenrod
32x32
Lock, Add
delete, Lock
Lock, Break
Edit, Lock
Lock, Go
mail, Lock, open
Goldenrod
Mac OS X style
Lock, secure, private
512x512
Elegant Blue Web
Lock, secure, privacy
Office icons
DimGray
48x48
Scrap
Gold