A VSCO profile picture viewer is a specialized tool—often a web application, browser extension, or manual technique—that allows you to bypass the platform's standard interface to see a user’s display image in high resolution.

This is the most effective "ethical hack."

Since no official viewer exists, here are that work within normal web browsing.

: View small profile icons in their original, full-size quality. Security Risks

Here is everything you need to know about viewing VSCO profile pictures.