Compromised Page: Former British Prime Minister Tony Blair.
Year: 2006

Tony Blair wasn't the most popular man in Britain when he decided to align with the United States to invade Iraq. To voice their protest, hackers took to Blair's Wikipedia page and edited his biography to say that he had started "a false war against Saddam Hussein". Even worse was what they wrote about his childhood. The entry stated that Blair hung up "posters of Adolf Hitler on his bedroom wall as a teenager." Wikipedia took this act of vandalism seriously and launched a full investigation into its origins. Unfortunately, it wasn't able to come up with anything.