Do you know what a ‘supercookie’ is? It sounds delightful, but in this context, it’s really not. Verizon Wireless has been tracking users for (mostly) marketing purposes, and assigning customers special codes. Being tracked for marketing was opt-out, but those codes were not deletable or opt-out. Some began dubbing those codes ‘supercookies’ because marketers could still access them and pick through your web browsing activity (see? Supercookies can be bad!). Now, Verizon is reversing course, and will allow customers to opt-out of any kind of tracking.