When a Dahua device ships from the factory, it comes with a standard username and password. Historically, these were well-known and publicly documented.
Before you start, make sure you have the following: dahua admin password
If you must use port forwarding, change the default TCP port (usually 37777 or 80) to a non-standard high port number. "Security by obscurity" isn't perfect, but it helps avoid the bulk of automated scanners. When a Dahua device ships from the factory,
Would you like a version tailored for end-user training or one focused on password recovery methods? dahua admin password