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Business & finance
3D
Refresh CL
card, security
Black
256x256
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UI
Gnome Web Icons
64, Gnome, high
64x64
security, medium, 64
security, Gnome, 64
Vista General Icons
security, privacy, Lock
Family & home
Brilliant
security
400x400
Real Vista 2
Agent, security, policies
Drifting
security, settings
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Desktop apps
Free Applications Icons
Lock, clef, private
24x24
Log in, private, password
Key, private, login
Protection, secured, private
Unlocked, password, Protection
Phuzion
Lock, security
128x128
Travel & hotels
Bags and boxes
security, safety, Lock
Computer & hardware
Human o2
Key, security, keychain