PNG ICO ICNS MORE
Mixed
Smooth
Carpelinx
Encrypted
DarkKhaki
64x64
PNG ICO ICNS SVG MORE
Tango Icon Library
Encrypted, network, wireless
Gainsboro
512x512
UI
Snowish
Pgp, Encrypted, mime
WhiteSmoke
128x128
Computer & hardware
Crystal Project
Black
256x256
Futurosoft
Network & communications
Oxygen
key hole, Lock, Encrypted
DarkGray