Idea of Fingerprint Icon
This looks like a zoomed-in finger print. There are many lines that start in the bottom right, curving up and to the left, and then ending in the bottom left. There's many breaks in the lines.
This is the Fingerprint icon for Windows 10
. Here we go. Optimized for 32x32 px, these are the simplest icons in the line style. Downloadable formats are PNG and SVG, among others. Icons8 icon pack is unique in providing a huge number of icons designed by the same team of four designers who create the new icons every working day in the same style and with the same quality. Same cool as the Bat Face, huh.