A legitimate license key for this version is tied to an ESET account, has an expiration date (usually 1–2 years), and can be activated on a limited number of devices.
Some Facebook pages ask you to fill out a “verification” survey: “Verify you’re human to unlock key.” These surveys collect your personal information (email, phone number, location) which is then sold to spammers. You never receive a working key. eset internet security 16.0.26.0 license key facebook