Angry Birds (video game) was being played, the staff liked the characters, and the team elected to design a game around them. In early 2009, physics games, such as "Crush the Castle", were popular flash-based web games, so the Rovio team was inspired by these games. During the development of "Angry Birds", the staff realized the birds needed an enemy. At the time, the "swine flu" epidemic was in the news, so the staff made the birds' enemies pigs. Angry Birds was the studio's 52nd produced game and on its initial release, the game did not sell many copies. After Angry Birds was a
Angry Birds for analysis". In a statement to the press, Rovio denied that they were providing any information to the intelligence agencies, but did not exclude the possibility that their advertisers might do so. Following this revelation, on 29 January, the Angry Birds site was defaced by hackers who replaced it with "Spying Birds" via a DNS hijacking attack. According to Rovio, "The defacement was caught in minutes and corrected immediately". The Syrian Electronic Army tweeted after the incident that the attack had been carried out by "a friend" of theirs. Angry Birds Angry Birds is a video game franchise created by