Verizon Wireless is finally letting users completely opt out of its tracking program which uses undeletable tracking codes called "supercookies". Prior to this, customers no longer received targeted advertizing after opting out from Verizon's data collection program. Still, customers' browsing history and metadata was being stored by Verizon. Under its data collection program, Verizon tracks personal data by tagging customers with a unique customer identifier code. This "supercookie" code was un-removable under Verizon's previous opt-out policy wherein users could halt the gathering of their browsing habits, but they would still be tagged with a customer identifier code. Now, users can ask Verizon to remove their customer ID code supercookie.