To activate Cubase 8, you'll need a valid license key. You can purchase a license key from the Steinberg website or an authorized dealer.

If you are looking for Cubase on a budget, there are safer, official ways to get the software:

One of the most significant technical upgrades was ASIO-Guard 2. This technology uses low latencies only on the tracks where you’re currently recording, while using higher latencies for playback tracks. The result? You can run massive projects with dozens of virtual instruments and effects without experiencing the dreaded "audio dropouts." 2. VCA Faders

that includes the core engine and essential tools for music production. Free Trial : Steinberg offers a 60-day trial of Cubase Pro

Users transfer old Cubase 8 licenses via Steinberg’s license transfer process. Check: