: For digital purchases of CIS Pro, check the email address used during sign-up for your unique activation code.

Once you have purchased a subscription and received your key via email, follow these steps to activate it:

Unlike competitors like Norton or McAfee, which offer only 30-day trials, Comodo offers a perpetual (lifetime) free version of its core antivirus and firewall. If you downloaded Comodo from the official website, you already have a working product without entering any key.

A: No. Comodo blacklists those keys within 24 hours of them being posted. By the time you read this, they are dead.

There are different types of Comodo Internet Security license keys available, including:

: Users who obtained their license through specific providers like One.com can find the key within their control panel under user details. Activation Steps

Users can obtain a Comodo Internet Security license key through various channels:

Sometimes, physical boxes of Comodo Internet Security Pro are sold at deep discounts ($10-$15) on Amazon or Newegg because retailers are clearing old stock. These keys usually still work because Comodo honors them.