Verizon has been outed once more for its use of the so-called "zombie cookies." There are a couple of differences but the secret code they insert to track users is still alive and kicking, Wired reported. When its unique tracking code was first discovered, EVDO explained that "zombie cookies" work "By attaching a Unique Identifier Header to all traffic that passes through their network, Verizon could effectively build profiles about users habits, the sites they visit, and deliver targeted advertisements based on this tracking."

The term "zombie cookie" was also coined because "This Unique Identifier Header was then popularly renamed the 'Zombie Cookie' since even after being deleted, the tracking cookie would be added back to the network and users would be tracked again," EVDO added. Verizon caved in to pressure eventually and allowed users to opt-out of this code, Network World reported.

However, Verizon has since acquired AOL for a solid $4.4 billion. What does this mean for "zombie cookies?" Quite a lot. Verizon came out with a notice saying that it will allow its users' profiles with AOL's ad network starting November. Now you might be wondering who in the world still uses AOL? Not a lot, that is true, but AOL does have an extensive ad network which covers 40% of websites, ProPublica reported.

Basically, Verizon will be able to sync its 135 million users with AOL. Information that will be shared includes gender, age, range, and interests. AOL will also get access to apps that mobile users open, sites visited, and how long they stay on them. There are a couple of reasons why this is problematic. First, this setting is default. Second, the information is sent unencrypted and this could lead to easy interception by malicious third parties.

 If you want to opt out of this, then you must visit this site or call 866-211-0874.

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