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Signs & symbols
Glyph
Web UI
Safe, Circle, privacy
Black
512x512
Web UI color
green, Lock, secure
LightSeaGreen
Outline
User interface
Lock, secure, security
Bold Purple (Free Samples)
security, Unlocked, Blocked
MediumOrchid
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Miscellany Web icons
Antivirus, shield, security
384x512
Protection, security, Key
434x512
padlock, security, protect
371x512
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Filled outline
Protection and Control Building / Colors
security, Protection, Building
DimGray
Construction, Control, security
security, Control, Building
Building, Protection, Construction
DarkGray
work, Building, Control
work, Accident prevention, Construction
security, Control, Accident prevention
Construction, Accident prevention, work
Building, Control, work
Control, Construction, security
AliceBlue
Control, Building, work
Building, Control, security
Lavender
LightCoral
Protection, Accident prevention, Construction
security, Accident prevention, Protection
Protection, Accident prevention, work
Construction, work, Control