The safest way to ensure your device remains protected is through official channels: Why ESET Endpoint v5 are legacy and no longer supported?

: Protection can fail at any time when the key is revoked, leaving your system vulnerable to modern threats. ESET Security Forum Status of ESET Smart Security 5 As of April 2026, ESET Smart Security 5 is a legacy product and is no longer supported. ESET Security Forum End of Life (EOL)

To activate and use ESET Smart Security 5, you need to enter a valid username and password. This credential is required to verify your license and access the software's features. Without a valid username and password, you won't be able to activate the software, and it will not provide protection against cyber threats.

Instead of relying on Facebook for NOD32 key updates, consider the following alternatives: