In response to increasing cybersecurity threats, newer firmware versions for the ZMM220 have implemented several security improvements: Mandatory Password Changes:
To help tailor further security recommendations for your hardware, please let me know: zmm220 default telnet password updated
Try logging into Telnet with the default admin PIN: or 8888 . Option B: Factory Default (Final Resort) Navigate to -> System -> Reset Settings
Often, the telnet root password is linked to the administrator password set on the device screen. Access the device interface. Navigate to -> System -> Reset Settings . In response to increasing cybersecurity threats
More recently, CVE-2024-13966 was identified in ZKTeco BioTime software, allowing unauthenticated attackers to enumerate usernames and log in as any user whose password remains unchanged from the default value . While this primarily affects the BioTime software platform, it underscores the broader organizational risk of relying on unchanged default credentials.