It's a logo for privacy which has a padlock on it. The lock is made up of a rounded rectangle with a half circle on top. There is a circle in the center of the padlock where the dial is and there is a reflection on it.
This Privacy icon is made in Material Design style
developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 5,700 icons, all in the same style and quality.