https://www.theregister.co.uk/2017/10/05/anonymous_report_russian_spies_used_kaspersky_lab_software_to_steal_nsa_secrets/

Russian government spies extracted NSA exploits from a US government contractor's home PC using Kaspersky Lab software, anonymous sources have claimed.

The clumsy snoop broke regulations by taking the classified code, documentation and other materials home to work on using his personal computer, which was running Kaspersky's antivirus, sources told the Wall Street Journal. It is alleged Kremlin hackers exploited the security package in one way or another to identify those sensitive files and exfiltrate them.