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Shopping & e-commerce
Smooth
Super Mono Reflection
green, shield
Black
64x64
red, shield
yellow, shield
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Computer & hardware
VistaICO Toolbar Icons
shield
256x256
Woothemes Ultimate Icon Set
128x128
web, shield
Futurosoft
Blue, help, shield
windows, Folder, shield
security, shield, win
32x32
Siena
green, shield, protect
shield, Blue, protect
red, shield, protect
yellow, protect, shield