Idea of No Access Icon
The icon shows a rectangle with a horizontal line through at the top. Inside the box under the line, there is a circle with a diagonal line inside it going from the top-right of the circle to the bottom-left.
This No Access 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 6,200 icons, all in the same style and quality.