What he simply used was a CCTV jammer.
Use Ethernet (PoE) instead of Wi-Fi,Physical cables are much harder to disrupt remotely.
or prolly use a dual connectivity[Ethernet wifi failover]
Enable interference / offline alerts a alarm should always blow if any camera is not working.
The CCTV camera didn’t capture the thief who stole my business phones.
I mean, the particular clip showing him entering the store, taking the phones, and leaving is missing from the recordings.
Other events were recorded by the CCTV, except for the period when the thief entered. No, the camera wasn’t tampered with cos the installer came and confirmed that everything was intact.