Juries may think that
but they would be wrong to do so.
And, that is because so called 'expert witnesses' have been distorting the truth, so they can get some dirty labour blood money.
In fact, most juries nowadays would probably side the other way, as most have probably had malware.
In a criminal trial it should not be on the balance of probabilities, it should be BEYOND a REASONABLE DOUBT, and it is VERY REASONABLE to assume malware could have caused the problem.
They are not expert witnesses for the prosecution, they are grubby little unethical thieves of justice, deserving of no more than our pure contempt and disdain for them.
Come the revolution, there will probably be an entire wall set aside for them and their kind, but that still wouldn't make up for their traitorous acts against humanity.