Why have I recieved an email about sony being hacked?

I don’t believe I made use of sony.Could any individual help me personally because We are really worried! It states sony online on the email.Which kind of things did they make we might have experienced.Please resolution:'(

it appeared to be mostly the playstation 3 network that is hacked so in case you used credit cards to have anything on the playstation system your account may very well be compromised.

To avoid this by happening once more download a lot more ram.