As the articel start to state, it is purely fictional....!!
So please, stop that fear-mongering.. It has no purpose, but to make ppl upset and feeling insecure.
A good advice to all, however: If you are the kind that use ONE and SAME password for all internet-services, including PSN.. then go ahead and start changing those others to individual password for each service.. 💡
For those of you, that think your old, seldom used email-account once used to PSN, and that you now, when you try it again, get a "wrong password"-message...
Maybe it is just you, that have a bad memory..?
Have you tried activating the "forgot password"-utility??
So stop yelling "hacked..!!" until you have certain proof...