You simply mount a small plastic clip to every other joist.
Running wires through your attic.
Do not drill them through the joists or rafters.
Yes this should be corrected and it would be good to have the wiring and all the circuit connections inspected as well.
Start by inserting a long wire through the hole you just drilled a disassembled wire coat hanger works well.
Even you are the first time to run security camera cabling you can install your security camera wiring through attics walls for your front back door reception room front back yard shop floor bedroom garage warehouse basement parking lot farm entrance even upstairs etc.
Raul no this is not a standard practice and is most likely the result of improper installation of electrical attic wiring.
How to run wire through an attic step 1.
Where the cables can t be walked on.
The attic wiring should be protected and secured to ceiling joists or other wood structural supports.
If a lot of wires are already hanging from the bottom of the floor joists you can run the wires through raceways that fasten to the bottom of the joists.
As nickblake says run cables on top of ceiling joists but route in a low part of the loft i e.
The following links will assist you with your electrical question.
Although it s rarely a problem in an accessible basement or attic if your home is built over a crawlspace or has a low narrow attic it can be hard to find the hole you ve drilled in the wall plate.
If you can run it across by stapling it to the rafters you can avoid the insulation thing.
After you窶况e run the wires through the clips you snap a plastic cover over the entire assembly.
When running along the joists keep them 2 above the ceiling.
Quickly fishing wires from the attic.
Find your attic access.