Allegedly what today's IT savvy drug lord is doing is doing is to have a secret server physically hidden on or near the property, which is where you keep all your real records.
It means you can have numerous laptops and PC around the property, none of which have any incriminating information, but all can access the secret server.
The problem is for the authorities is to find the server, assuming it ever existed, as you can bet it will be well hidden, and may not be on the actual property.
To confuse the issue further they wire up the property and number the cables, say 5, 6, 7,& 8. Which then means the authorities spend days trying to find cable 1,2, 3 and 4, but all they find is cable 12, which means means more searching, all to no avail, as they never existed.
There is a recent drug bust
Here that give you and idea of the level people will go to hide illegal activities.
Can you imagine the size of the hole that must have been made to bury 12 containers under 20 feet of soil !
And that is before you add air circulation, venting, drainage, plumbing etc.