It is definitely a thing that happens: https://www.nbcnews.com/tech/security/former-twitter-employee-sentenced-three-years-prison-spying-saudi-arab-rcna61384 ht

It is definitely a thing that happens: https://www.nbcnews.com/tech/security/former-twitter-employee-sentenced-three-years-prison-spying-saudi-arab-rcna61384 https://www.nbcnews.com/tech/security/former-twitter-employe... Hard to say how often / what fraction of occurrences are never caught, or caught but never publicized.