TOO MANY PEOPLE believe Computers are INVINCIBLE
Now, that is absolutely true, I worked in the field for 38 years and I know every computer system can be hacked.
As I said, it’s not always some geek sitting in a basement with a laptop, most times it’s someone within the organization that is either up to no good or is careless.
I was contracted to a major bank, it had over 7000 locations inside the USA, if one of those infected the entire network it would be hard to determine where it was coming from.
When I said hard to determine meaning it might take a few hours not a few days or weeks, but a few hours in a major network is big dollars, suppose the NYSE went down in the middle of the day for 3-4 hours or a major airline, bank or telco....it could be completely fixed in a few hours but would still have caused a major disruption.