Is security camera hacking a problem? If so, how big?

[pcarfan 0]

I have a solid password for LAN. Solid password for router. I have a custom password for the security camera NVR, however it cannot be set strong.

 

To view online, it needs port forwarding. This I hear opens it up to hacking, in spite of all above passwords. Is this true?

 

Mine is the Q-see qc818 NVR

 

If it is hackable, what does this mean? I only want you to answer if you know for 100% sure, not just what you've heard. Pretty much, only if you can do it yourself. If it is hacked, is it just viewing the camera or can someone get into my router and set up malware? So, will hacking do anything other than viewing the cameras.

 

My router can do VPN, will that secure it?

 

Thank you!