Kottmann received leaked Intel documents from an anonymous hacker that contacted him via his Telegram channel. The 20 gigabyte package was uploaded to Kim Dotcom's Mega cloud storage site.
https://www.afterdawn.com/news/article.cfm/2020/08/08/hacker-uploads-20-gb-of-intel-s-internal-documents-to-kim-dotcom-s-cloud-storage
https://www.afterdawn.com/news/article.cfm/2020/08/08/hacker-uploads-20-gb-of-intel-s-internal-documents-to-kim-dotcom-s-cloud-storage