 In January 2014, Matthew Campbell and Michael Hurley filed a lawsuit against Facebook, claiming that the information in their supposedly "private" messages was being read and used as a way to generate profit.Facebook scans messages containing URLs "for purposes including but not limited to data mining and user profiling", which is believed to be a breach of the Electronic Communications Privacy Act.In 2008–2009, there was a controversy in which Facebook users thought their once "private" messages were becoming open for the public to see.