Malware history was: Spectre & Meltdown

[Sam O'nella via cctalk]

Enjoying the virus/malware history as its always interesting to see what people 
thought. Tricks, boredom, etc cause interesting results.
For punch cards i thought someone was going to mention punching all the holes 
and jamming the reader. I'm not sure if thats real but heard some folks had to 
check their opcodes or it could potentially lead to that or flimsy card 
integrity if not. 
Did anyone here ever see animal or other shared system malware? Animal was just 
a nondestructive trojan (other than potential to take up disk space) but 
interesting that someone would run a program that appeared unexpected in their 
home folder.
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(I'm unaware of any punch-card attacks, but trojans were possible when 
people used prior subroutines)