Video recorder DVR-8x8DVNU for security cameras - how to organize the reset of information via the Internet?

Question

CCTV

I myself am not in the tooth with my foot, so I ask for the help of the community.
At acquaintances a subject. This question is very worrisome - what if the attacker steals it too? So to speak, a photo for a family album so that it is in a calm old age ...
In such a case, two solutions are regularly provided in the instructions - the possibility of backup via Internet when entering through a client program and a photo to email in case of motion detection. In the second case, the photo of the open door is somehow useless, and the first one is nothing to discuss - why not put a person on duty at the computer?
The company that sold and installed the subject claims that there is no possibility to write to a third-party computer via the Internet in parallel.
Maybe there is some way to get around?