I am going to imagine that you mean if someone breaks into the property, you want power to drop.
Traditional burg systems will have onboard relays that can activate for specific events. As a for instance, you could set a condition where if the system goes into alarm on an intrusion that the relay would then trip what I believe electricians call a switch leg. Basically a relay designed to handle "high" voltage. ("Low" voltage is technically anything under 110VAC, but traditionally 24VDC and lower)
Newer burg systems, of which I am not nearly as familiar, incorporate a lot of smart home features and can be tied directly into automation devices to perform specific activities.
Keep in mind that burg systems are not infallible and can false alarm for bad contacts and such, as well as the user error introduced by people forgetting to arm/disarm properly.
My suggestion would be to utilize the security already in your OS where you can set an inactive time to log out and set it to want a password on wake. If the disks are encrypted AND you use a strong password for log in it would seem to offer a good front line of "care" that won't leave you with worthless or damaged equipment.