lock icon set security safety close and open icons

navigate by keyword : white web vector unlocking top text system symbol states simplicity simple sign shows shapes shape set security secure screenshot safety safe row right protection privacy presentation permission password padlock outlined outline open number network multimedia modern minimalistic logo locking lock lines line left keyhole key isolated internet includes icons icon horizontal guarding gadget four font flat filled features equipment encryption

Four lock icons on a white background depict different security states. The top row includes a closed lock on the left and an open lock on the right, both outlined in black. The bottom row features a closed and an open lock filled in black. Each lock shows a keyhole at the center. The design is simple, emphasizing security concepts with minimalistic shapes and clean lines.