WSJ claims Russian state-sponsored hackers stole classified NSA documents from a contractor in 2015 with the help of a security program made by Russia-based security firm Kaspersky Lab. U.S. Department of Homeland Security recently banned from all government computer systems over spying fear. The breach of NSA classified files was occurred in 2015, but detected in 2016, according to the WSJ. The WSJ story does not even prove the involvement of the popular security vendor, but it has been speculated that the antivirus’ practice of uploading suspicious files (malware executables) on the company’s server.
Source: https://thehackernews.com/2017/10/kaspersky-nsa-spying.html