An unsolicited sales pitch may be part of a fraudulent investment scheme. Exercise extreme caution if you receive an unsolicited communication - meaning you didn't ask for it and don't know the sender - about an investment opportunity.

In the US, banking and finance are regulated on the federal and state level, there are multiple federal bank regulators, and there are separate securities and commodities regulators.

Applying criminal law to the exchange of bitcoin on behalf of ransomware victims would create a morally shocking result of re-victimizing a victim. All lawfully operating digital currency exchanges would thereafter refuse to exchange bitcoin for ransomware victims for fear of criminal culpability.

Blockchain technology has such a wide range of transformational use cases, from recreating the plumbing of Wall Street to creating financial sovereignty in the farthest regions of the world.