PNG SVG PSD EPS MORE
Signs
Flat
Fingerprints
security, Lock, Fingerprints
Black
512x512
PNG ICO ICNS MORE
Network
network, secured
256x256
PNG ICO ICNS SVG MORE
Business & finance
Simple Payment Methods
online shopping, payment method, card
Gaming & gambling
3D
Free Game Icons
secure, Authentication, password
64x64
login, secrecy, Golden
Photorealistic
48x48 Free Object Icons
Antivirus, Guard, Army
48x48
Network & communications
Pixel
16x16 Free Application Icons
secure, Log in, pass
16x16
Key, Log in, login
Lock, security, pwd
PNG MORE
Desktop apps
Free Applications Icons
Lock, clef, private
24x24
Log in, private, password
Key, private, login
Protection, secured, private