Big Tech’s big greed gave China keys to US defense systems

It's a national betrayal: Microsoft, actively exploiting loopholes in federal guidance, has effectively handed Xi Jinping the keys to sensitive US defense systems — by using cheap Chinese labor to maintain them. In July, for example, ProPublica reported that Microsoft has long employed engineers based in Communist China to maintain and support cloud systems used by the US Department of Defense. Microsoft's role as a trusted contractor for our federal government means this is not a routine cyber vulnerability, but a direct threat to our national security. When China gains insight into Department of Defense systems — whether through direct…