security line icons set. protection, safeguard, armor, shield, fortress, fortify, barricade outline

icon line vector protection safeguard armor shield fortress fortify barricade defend vigilance sentry watchful guard patrol secure immunity obstruct lockdown guarded prevent deterrent wall seal cordon block repel interdict preserve repress lock screen deter resist resistive prohibit repulsive cloak hide intercept check castle bunker ward encrypt inspect privacy inhibit