The project was started in response to the Church of Scientology's attempts to remove material from a highly publicized interview with Scientologist Tom Cruise from the Internet in January 2008.
Project Chanology began its campaign by organizing and delivering a series of denial-of-service attacks against Scientology websites. The group was successful in taking down local and global Scientology websites intermittently from January 18, 2008 until at least January 25, 2008.