This is a Secure icon. We've made it in iOS style, first introduced in iOS version 7 and supported in all later releases up until now (at least iOS 11). This style is based on thin two-pixel lines and is optimized for 50x50 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 12,800 icons, all in the same style and quality.
This icon includes a larger circle that has a rectangular shape with rounded edges in the middle. In the middle of the rectangle is a black shape that looks like a key hole. It has a curved line that is attached to the top of the rectangle.
Related to Secure Icon
Related icons are the icons with matching tags, as well as all messaging icons. All icons are in the same flat style. You can either download free PNG icons or buy SVG vectors