Last Friday, a group of purportedly Gazan hackers defaced Israel's Fire and Rescue Services website. They didn't just do any old hack, but added a "death to Israel" message on the website and a tweaked picture of Israel's Deputy Foreign Minister, Danny Ayalon, where they superimposed foot prints over his face.
Ayalon is the public official responsible for a strongly worded statement denouncing hacking, likening it to terrorism and threatening (bad move) that:
Israel has active capabilities for striking at those who are trying to harm it, and no agency or hacker will be immune from retaliatory action.
Now, I'm sure you can imagine that the hackers were not happy with Ayalon's choice of words. The statement was made as a response to a cyber attack against Israel where hackers claimed to have taken 400,000 "Zionist" credit cards, including addresses, names and Israeli ID numbers (like Social Security). It has been reported that at least several thousand of those credit card numbers were verified as legitimate cards.