The only hard evidence (besides the story about the Russian woman marrying the guy in Aerospace) this article offers is some guy getting a few LinkedIn requests

The only hard evidence (besides the story about the Russian woman marrying the guy in Aerospace) this article offers is some guy getting a few LinkedIn requests, and two Chinese women trying to get into a conference. There is nothing specific about Chinese/Russian spies seducing normal silicon valley tech workers or marrying them for trade secrets.