The hacking of the Social Democrats internal network in Sweden is being linked to lousy passwords (as in passwords anyone and their five-year-old could guess).

According to this Slashdot report, (the original article is in Swedish) the hacked account was 'sigge' with a password of (oh, just guess) 'sigge.'

So, strong passwords (passphrases are better) use upper case, lower case, numbers and symbols. Make sure you can remember it and avoid writing it down.