PNG ICO MORE
Android icons
password, Lock
DarkGray
72x72
PNG ICO ICNS MORE
Carpelinx
Lockoverlay, Lock, password
128x128
Dark Glass
Authentication, system, Configure
Primo
Key, password
Farm-Fresh Web
phone, telephone, Tel
32x32
Silk Companion 1
Computer, password, Key
16x16
Diagona
locked, password, Lock
Desktop apps
Pixel
Diagona Icons
security, password, Lock
Photography & graphic design
3D
Lock, Key, password
Mixed
Smooth
password, secure, Lock