On May 28, 2024, Woo’s engineering team discovered an issue within WooCommerce (versions 7.8 and above) that caused the unintentional collection of specific visitor data by Automattic, Woo’s parent company. 

This issue only pertained to WooCommerce stores that had data tracking enabled and did not have their store connected to Jetpack.

Original source: https://woocommerce.com/posts/woocommerce-data-tracking-update/