ZKTeco devices typically operate over a TCP/IP network and are managed via a Web UI, SDK, or client software. The vulnerability lies in the authentication layer of these services.
To secure ZKTeco devices, follow these mandatory steps: zkteco default password
These defaults vary by firmware version and device model . For example, the ZKSeries 3.0 firmware uses admin:12345 , while ZKSeries 2.x used administrator:password . ZKTeco devices typically operate over a TCP/IP network