Singularity with a multi-electrode array.

Your thinking wrong. Theres two sides to the array, the computer side that computes your senses and the brain side. The brain is the hardware and the computer side is the software. Viruses dont physically damage hardware, just software. Your desktop gets a critical virus and you can wipe it clean and reinstall your OS. All your hardware is undamaged though.

Got a link to where one could read about the Array and the whole setup?

Under basic logic and computer knowledge, the array could be compared to a router, as it's essentially translating. Receiving, storing, and accessing data makes the brain dangerously akin to a hard drive, whose data is easily corrupted by malicious software.