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Gaming & gambling
Photorealistic
48x48 Free Object Icons
security, Lock, secure
Black
48x48
Unlock, Key, locked
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Business & finance
Pixel
24x24 Free Pixel Icons
Key
24x24
Glyph
24x24 Free Application Icons
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UI
Outline
Wirecons Free Vector Icons
modifier, Keyboard
512x512
Desktop apps
Simple Icons
Klout
4096x4096
Kickstarter
Khanacademy
Flags
Stripe Flag Set
Kz
MediumTurquoise
23x23
Kg
IndianRed
Kn
DarkSlateGray
Kp
SteelBlue
Kw
Kr
WhiteSmoke
Social media
Publicons
Kirby
Gentle Edges Icon Set
Key, password
128x128
Mixed
Pittogrammi
Key, secure
Devine Icons Part 2
Flat
Plex for Android
Kobo
RoyalBlue
96x96
Keep
SandyBrown
Kindle
iOS 7 icons
