As CCTV systems evolved, cameras and recorders evolved, giving way to digital technologies in video surveillance systems and since then the way to store video was made in digital video recorders (DVR) which used mainly HDD to store video of better resolutions and higher image quality.

Technological advances have pushed video surveillance systems to use network technologies, allowing them to store images from cameras with high quality resolutions regardless of where they come from on devices called network video recorders (NVRs). This gives us the ability to store significant amounts of video in services that we now know as "the cloud", an online service that doesn't need to physically have a computer in the same place where the security cameras are located and that is compatible with multiple brands of manufacturers.

One of the most important advantages of the new video surveillance systems is the ability to access these images from any mobile or desktop device and from anywhere, using secure methods of access to information, giving users peace of mind knowing that their information is well protected.