PNG MORE
Mixed
Pixel
IconSweets 2
Cloud, Lock, ligtning
Black
40x40
Safe, Lock, timer
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Computer & hardware
3D
3D icons
Lock, private, padlock
256x256
Business & finance
Accounting
Safe, vault, Money
400x400
Education & science
Impressions
Certificate, mail, Safe
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Smooth
Diagram
Lock, Safe
64x64
open, secure, Lock
Desktop apps
Mac OS X style
Safe
512x512
Free Applications Icons
Lock, clef, private
24x24
Log in, private, password
Key, private, login
Travel & hotels
Bags and boxes
security, safety, Lock
128x128
Dellipack
vault, Money, Cash
Vector Money Icons
Cash, piggy bank, pig
UI
Nuvola