This is the genuine "free MikroTik license key" that nobody talks about. The license is a permanent, never-expiring license available for x86 architecture only (PCs and VMs).
MikroTik operates on a trust-based (but secure) system. The level of the license is stored in the RouterOS software and checked against the system ID. While some old versions (v5 and earlier) had exploits, modern v6 and v7 have proven extremely resilient. Furthermore, using a cracked license violates the GNU GPL and MikroTik’s EULA, leaving you open to legal liability and voided warranties. free mikrotik license key