Is the suggestion that if your security is weak, at least some of the blame goes to the hacked? If your home security is weak, should we grant more leniency to a burglar? The insurance company should be the one to punish the riskiness of homeowner security.
The challenge is to get out and never be caught.
Speaking of guns, it's actually also not unheard of for people to be partly responsible for crimes committed with guns that were stolen from them, even in their home. You have something dangerous, like a network that has become a de facto platform for government officials, then yeah: you have a responsibility to take reasonable preventative measures too.
I guess in the US thee are so many guns that perhaps criminals will just assume that you're armed anyway. But IMO that only makes the case for gun control stronger. Because the most effective way to change that attitude would be to dramtically decrease the number of guns in circulation.
If someone breaks into Twitter, user data is compromised. It's not just the business that pays a price.