WooCommerce Protected Categories takes a secure approach where possible. If a product is in two categories - one public and one protected - the product will still be protected, even if accessed from the public category. If you want to sell the same product in a public and protected category, then we recommend using the free Duplicate Post plugin to quickly clone your products.
Each product can only be in one password protected category. You can add a single product to multiple user or role protected categories.