Avoid using "free" license keys or "cracks" found on third-party sites. These often contain malware and can cause your navigation to fail while on the road, which is a major safety risk for truck drivers.
Cracked versions cannot access Sygic's cloud servers for map updates. Driving a heavy truck with outdated map data is a massive safety risk.
Most "key generators" are fronts for malware, spyware, or ransomware that can steal your personal information.