I think what we are specifically speaking about here is one where it can be done remotely. Intelligence orgs have had secure(ish) digital dead drops for years.

I think what we are specifically speaking about here is one where it can be done remotely. Intelligence orgs have had secure(ish) digital dead drops for years. Example: https://www.bbc.com/news/world-europe-16614209 https://www.bbc.com/news/world-europe-16614209