bootstrap-icons/icons/lock.svg

<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-lock" viewBox="0 0 16 16">
  <path fill-rule="evenodd" d="M8 0a4 4 0 0 1 4 4v2.05a2.5 2.5 0 0 1 2 2.45v5a2.5 2.5 0 0 1-2.5 2.5h-7A2.5 2.5 0 0 1 2 13.5v-5a2.5 2.5 0 0 1 2-2.45V4a4 4 0 0 1 4-4M4.5 7A1.5 1.5 0 0 0 3 8.5v5A1.5 1.5 0 0 0 4.5 15h7a1.5 1.5 0 0 0 1.5-1.5v-5A1.5 1.5 0 0 0 11.5 7zM8 1a3 3 0 0 0-3 3v2h6V4a3 3 0 0 0-3-3"/>
</svg>