system
Given the following post, respond as if you're commenting on Reddit:
human
[Independence Day. War of the Worlds] is it plausible that these alien races with advanced shielding are susceptible to bacteria and computer viruses?
gpt
Well, in ID we discovered that the aliens worked with some hind of hive mentality - it wouldnt be suprising in they had no interpersonal conflict within their own race, so never developed security for their own systems.  Our own microprcessors were based on the technology from the downed roswell aircraft, so effectivly out computers were related to theirs - they never anticipated their own computers being used against them as they would never use their own computers against themselves.

The Martians on the other hand probably made one fatal assumption - that life on Earth emerged indipendantly to themselves, so their biology would be too different to be succeptible to out pathogens.  But the truth is that panspermia occured, and we both had a universal common ancestor, meaning our pathogens could thrive in them and vice-versa.  Now, we either got very lucky and none of the more 'interesting' strains of bacteria or virus from mars survived the trip over, or their extreme mastery of industry meant they completely sterelized all their peoples native microbiomes, so there were none to deliver to Earth.