In Attack on Vatican Web Site, a Glimpse of Hackers’ Tactics

The elusive hacker movement known as Anonymous has carried out Internet attacks on well-known organizations like Sony and PBS. In August, the group went after its most prominent target yet: the Vatican.

The campaign against the Vatican, which did not receive wide attention at the time, involved hundreds of people, some with hacking skills and some without. A core group of participants openly drummed up support for the attack using YouTube, Twitter and Facebook. Others searched for vulnerabilities on a Vatican Web site and, when that failed, enlisted amateur recruits to flood the site with traffic, hoping it would crash, according to a computer security firm’s report to be released this week. The attack, albeit an unsuccessful one, provides a rare glimpse into the recruiting, reconnaissance and warfare tactics used by the shadowy hacking collective.