PNG ICO ICNS SVG MORE
UI
Glyph
Free basic
identification, support, user
SandyBrown
512x512
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Windows 8 metro style
login
DarkSlateGray
Gaming & gambling
3D
Free Game Icons
Entrance, pent, Cell
DarkKhaki
64x64
secure, Authentication, password
Black
login, secrecy, Golden
Photography & graphic design
32x32 Free Design Icons
Key, password, login
32x32
Photorealistic
48x48 Free Object Icons
locked, Hide, login
48x48
private, Protection, security
security, Lock, secure
Unlock, Key, locked
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Business & finance
Pixel
24x24 Free Pixel Icons
24x24
Network & communications
16x16 Free Application Icons
secure, Log in, pass
16x16
Key, Log in, login
Lock, security, pwd
Smooth
Snipicons
WhiteSmoke
gmail, login
Windows 8 icons
26x26
Mini icon set Part 1
login, In
login, out
DarkGray
Blueberry
Key, login
CornflowerBlue
Windows 8 Pack (Metro Style)