Run the installer and follow the on-screen instructions.

Once you purchase a license, you can manage it easily through the ESET HOME platform , which helps you monitor which devices are using your license 1.2.3 .

Legitimate keys have a strict limit on the number of active devices (e.g., 1, 3, or 5 devices). If a key is posted publicly on Facebook, hundreds of people will attempt to use it simultaneously. ESET's servers flag this unusual activity and instantly deactivate the license.

In 2024, security researchers identified a campaign targeting ESET users via Facebook ads offering “160260 day license key.” Victims downloaded a custom ESET installer that disabled legitimate protection and installed a backdoor. The result: stolen browser passwords, cryptocurrency wallets, and session cookies.

ESET Internet Security is a comprehensive security solution developed by ESET, a well-known cybersecurity company. This software is designed to protect users' devices from a wide range of threats, including viruses, ransomware, phishing attacks, and other types of malware. It offers advanced features such as real-time protection, a firewall, anti-spam filtering, and tools to protect online transactions and passwords.

Legitimate retailers like Newegg often have sales on ESET products.

ESET products are also available through authorized resellers. The process is similar to buying directly from ESET, with the license key provided upon purchase.

: Many shared keys are trial versions that only last 30 days.

: You can activate a 30-day trial of ESET Internet Security directly through the software by providing a valid email address.

To provide a risk-free way to evaluate the software, ESET offers a 30-day fully functional free trial for all its plans.

ESET frequently runs seasonal discounts, student discounts, and multi-year bundle deals that significantly lower the price per device.