If you used closed-circuit surveillance for your home security camera system, then you don’t really have anything to worry about with regards to malicious hackers possibly gaining access. It’s those home security cameras which are connected to the internet which are a cause for concern, posing the security risk of being hacked and controlled in a way which you didn’t originally intend for them to be operated.
There are some common steps you can take to protect your security cameras from getting hacked though, the most effective of which simply entail exercising some common sense and common vigilance.
This goes back to the closed circuit versus internet connected surveillance system discussion. You’re perhaps not entirely out of the range of a potential threat if you use closed-circuit surveillance because some home security networks rely on a local private Wi-Fi connection to function. Look, a hacker would have to be within range for a long enough period to apply hacking techniques such as using a brute force attack to try and gain entry into the network operating your security cameras, so other security measures should come into play to ward off suspicious activity of this sort. Otherwise just ensure to secure your private network with a password and if possible, rather use cables to connect the security camera network and only have the Wi-Fi connectivity function kick-in as a back-up (in case the cables get cut or something).
Decentralise Your Camera Network
This simply means you should at least have to control points for your home camera security network so that if it is in any way breached, the intruder only has control of one portion of it, while they’d probably let their guard down believing they have full access via what are ordinarily centralised home security control units.