Well aren't we the pack of smarties today!
I am very well aware which IP they meant.
If they wanted to protect their INTELLECTUAL PROPERTY, wouldn't step 1 have been to close security hole in exact same INTELLECTUAL PROPERTY 5 years ago when it was first found?
Just so happens that protecting said INTELLECTUAL PROPERTY also has everything to do with how they run their INTERNET PROTOCOL address and attached networks and services.
I fail to see the logic there. The intellectual property they were trying to protect was the operating system and firmware of the console, which wouldn't be floating around on their web servers. And what security hole would you be referring to? The same one where, once the device is bought, it moves beyond their control and into the clutches of a person who can do whatever they want with it save for terms & conditions attached to the device?
It's cause & effect.
Geohotz and his mates ignored those terms and conditions, jailbreaked and distributed the hacks to the internet at large making it possible for piracy to become a problem - thereby putting Sony's partners at risk of losing income as well. Sony acted to shut them down and prevent the spread - something they were well within their rights to do, rights contained in said terms and conditions attached to the device - there's your cause.
Here's your effect - as a result of that action, LulzSec and Anonymous took action and attacked Sony's web servers - they didn't touch Sony's intellectual property, they went after Sony because Sony were trying to protect what was rightfully theirs. Yes - there were massive holes in their server security, and the two groups used some relatively simple attacks to gain access to the web servers and information on them - which didn't happen to be Sony's IP, but rather the information of users using those networks.
The two are related, yet entirely seperate.
Furthermore, no need to get aggressive. I was stating an opinion - you don't need to attack me for it, although you are free to disagree. Your initial post was a little muddled - since in reading that, the understanding would be that Sony got hacked because they didn't up the security on their servers.