Quoth The Guardian: [theguardian.com]
The Fraternal Order of Police (FOP), which says it represents about 330,000 law enforcement officers across the US, said the FBI was investigating after 2.5GB of data taken from its servers was dumped online and swiftly shared on social media. The union’s national site, fop.net, remained offline on Thursday evening.
[...]
In an online posting [thecthulhu.com], a person using the screen name Cthulhu said he or she had released the files after receiving them from a source who wished to remain anonymous and wanted them made public “in light of an ever increasing divide between the police groups and the citizens of the US”. In a statement to the Guardian, Cthulhu added: “Our role is simply to present the material in an unadulterated form for the public to analyse.”
Repeat after me: if you've done nothing wrong, you have nothing to hide...