My point
"It's a $25B company that makes many varied products; batteries, cameras, laptops, game consoles, music, movies, etc. I'd be shocked if a fault in one segment made even a ripple through the rest of the company."
Which is why it doesnt care and wont care.
Any segment of its business can piss off customers as much as it wants because it knows that the overall effect will be almost non-existent.
People will still buy a Sony camera and send off their personal details on the warranty card, they wont stop to think that this is the company that almost deliberately fails to protect it.
The end result of this is that there is no economic incentive for Sony (*) to spend money to protect its customer data. They know that when it breaches, they say "sorry", concoct some story about how fantastic the hackers must have been and move on.
Customers on the other hand, get to be in the position of paying for a product and then suffering the consequences. The "free market" should enable customers to express discontent by their spending habits but it rarely works that way - or the public doesnt give enough of a toss about its own data...
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* not just Sony but its easier than listing every megacorp....