CapMonster2 allows you to set up protection against use by third parties. To do this, you need to enable protection in the program settings.
When protection is enabled, only authorized users who have a key or login with a password for access will be able to send captchas to CapMonster2. Keys and passwords are also registered in the program protection settings.
If protection is disabled, any users can send captchas to CapMonster2.