WaPo claims to know the source of the Pentagon leaks.

​The Washington Post alleged that a gun enthusiast in his twenties who worked on a US military base is the person behind the latest leak of sensitive defense documents. The newspaper claims to have made contact with two alleged members of the 'Thug Shaker Central' Discord group, one of whom is still in his teens. The man allegedly began posting classified materials late last year, first uploading hand-typed copies before switching to uploading photos. The documents have been making rounds online ever since and US officials have claimed that some of them contain sensitive and highly classified material. The US Department of Justice has launched a criminal investigation into the leak, with the FBI assigned to the case.​