For just the US:
#1.) CC info from PSN de-encypted and used. - 77,000,000 accounts compromised, odds depend on how many people could be using the stolen information and how many of those accounts had cc info.
#2.) Struck by lightning. - 1/775,000 in a given year
#3.) Winning the New York Lottery. - 1/175,711,536 to match all numbers
#4.) Odds of identity theft in general - 1/18.22
So obviously, if you are already starting out at a 1 in 18 chance of having your identity stolen in a given year, the PSN accounts compromised only heightens that chance as well as having your CC info stolen.
I'm not saying you need to worry. I for one am not worried at all over it. If it gets stolen, I have insurance and means of fixing the damage. But the chances of identity theft are actually much much higher than you'd think and the PSN hack only increases those chances.







