Padlock and Key Icon - Free Public Domain Vector for Security Design #3550567 (License: Personal Use)

This minimalist black-and-white vector illustration features a rectangular padlock with a shackle and central keyhole, paired with a traditional skeleton key on a ring. The clean lines and bold contrast make it highly legible at any scale, suitable for UI/UX, infographics, or educational materials about cybersecurity.

Commonly used on login pages, privacy policy sections, encryption explanations, and security-awareness content; matches user intent for visual metaphors of protection, authentication, and data safety.