minimalist outline padlock, secure access icon

padlock icon security privacy protection minimalist simple digital safety lock keyhole black white graphic access control encryption safeguard vector isolated modern symbol secure encrypted confidential technology computer cybersecurity safekeeping element interface design web application mobile app flat document storage password private property entry software closed lockdown archive guarded firewall authentication seal verification measures readonly permissions inaccessible barrier defense shielding data management outline sleek embodying essence age set stark background maximum contrast impact