Because apparently the whole internet is now unsafe and you need to change your password for pretty much everything.
I'm only just getting around to it myself. Because no one would bther stealing my identity since I have nothing worth taking.
I couldn't get a credit card, let alone the person taking my identity.
on a side note, if you want to see how safe your password is, just try it one this website:
howsecureismypassword.net
apparently the one I'm using now will take six years to break. Although it would take A Million Years just by adding 123 on the end.
That said, I probably shouldn't be using the same password for everything :S