After Russia has launched its full-scale invasion of Ukraine, various hackers started breaking into the mail servers of Russian organizations and releasing their contents to the public. Given mounds of data to sift through, how is it possible to find any meaningful information in there?For this purpose, we modified Aleph, a software environment for document indexing, and while running it in test mode we uploaded almost two dozen such "leaks" from Russian companies and governmental bodies to it. This text explains how to operate this system. You can find a link to the tool itself at the end of the article.Translated by Dmitry Lytov, Mike Lytov