You can enroll users directly on the device or through the software. Installation Guide - ZKTeco
If you have already downloaded and run a patched ZKTeco crack, take these steps immediately: zkteco attendance management software 488 patched
: Significant updates have been released to fix over 24 critical vulnerabilities discovered in biometric terminals. These include SQL injections, command injections, and buffer overflows that could lead to full device takeover. You can enroll users directly on the device