To keep track of cart data, WooCommerce makes use of 3 cookies:
- woocommerce_cart_hash
- woocommerce_items_in_cart
- wp_woocommerce_session_
The first two cookies contain information about the cart as a whole and helps WooCommerce know when the cart data changes. The final cookie (wp_woocommerce_session_) contains a unique code for each customer so that it knows where to find the cart data in the database for each customer. No personal information is stored within these cookies.
