Wi-Fi jamming to knock out cameras suspected in nine Minnesota burglaries -- smart security systems vulnerable as tech becomes cheaper and easier to acquire
This goes without saying but obviously the most secure will be analog. Unfortunately that is neither accessible or worth the time and trouble for the average consumer.
You know digital can be wired right? And analog doesnt mean secure, you can listen in and disable analog signals just as easy as digital ones.
These people are just using signal jammers you can buy on AliExpress. They can jam analog and digital it's just about what frequencies it blocks. However using them in North America is illegal.
IP anything is generally far more difficult to jam thanks to TCP/IP checking for acknowledgment the data arrived and trying again - at a slower speed which can handle more noise.
Our cameras at work use wifi and Ethernet and have an internal SD card - plus a built in coin cell battery that can run for a little while. Obviously not cheap though.