This was apparently reached in Russia a while back, and became very advanced: <a href="https://threadreaderapp.com/thread/1579124072390463488.html" rel="nofollow">https://threadreaderapp.com/thread/1579124072390463488.html</a><p>"In contrast, Russian cryptobros that I know tend to act very, very lowkey. The fewer people know about your activities, the better. Posting about dealing with crypto in social media is absolutely unthinkable. Why? Because that makes you too easy and lucrative prey "<p>"Most likely explanation:<p>Russian federal prison officer built an underground prison as an exact copy of a real prison. There he persuaded kidnapped ppl they are in a real prison. They'd give him wants he wanted, then he'd kill & burn them. In 2018 he died, prison was abandoned"