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Mixed
Flat
WHSR January Flaticon Set
Lock
Black
512x512
Glyph
shopping website
locked, Key, key lock
256x256
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Geomicons
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Octicons
384x512
Flat Green
password, protect, secure
Gainsboro
Entypo
398x512
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Simply 8-bits #10
screen, And, Lock
LightSkyBlue
96x96
And, Lock, off
Silver
WPZOOM Developer Icon Set
secure, Lock, Closed
open, Lock
Outline
Linecons Free – Vector Icons Pack
password, Lock, security
Lock, secure, password
Iconic
stroke, Lock
DarkSlateGray
Lock, fill
Smooth
Tango Icon Library
Lock, screen, system
20 Flat Icons
102x128
Pittogrammi
locked, Lock
Unlock, Lock
3D
Iconza
32x32
Lock, Unlock