Defense Matrix

The Defense Matrix is a Transformer's electronic autoimmune system. It can respond to nonphysical intrusion with countermeasures, tailored computer viruses, and reflexive distress signals broadcast by any available means. The Defense Matrix functions at a level below conscious control, and it makes any attempt to 'hack' a Transformer very hazardous, at least from a non-isolated computer.

Wheeljack's responses indicate the Defense Matrix is part of every Transformer.

Fiction

G.I. Joe vs. the Transformers

Doctor Mindbender's attempts to bend the captive Optimus Prime to his will triggered a response from his Defense Matrix, which invaded the Cobra computer system and sent out several hundred random e-mails detailing his location and situation before it could be shut down. G.I. Joe vs. the Transformers