, 6 tweets, 2 min read Read on Twitter
This explains how Facebook plans to monetize a unified, 2 billion user end-to-end encrypted messaging service.

I can't think of a tech project with a more important privacy/safety balancing act than this one. I hope my friends working on it start public discussions on that.
On one end, a completely private and encrypted messaging service tied to an open, Zerocoin-like, zk-SNARK backed cryptocurrency and backed by a tech giant would instantly become the go-to mechanism for global money laundering, tax evasion, and just general criming.
On the other, without mathematically-backed privacy features having all of this data in one place would be a massive source of security and privacy risk, and a huge boon for countries with leverage over FB to get data access.

Wow, gonna be an interesting couple of years.
Why does FB's involvement change the safety/privacy calculus?

Currently, only a couple of cryprocurrencies are large enough to be really usable without raising suspicion, and those (like BTC) have no privacy.

The privacy currencies are really thinly used.
Creating something with strong privacy guarantees that a billion people will have access to on day one would combine liquidity and anonymity in a way we've never seen before.

No precedent for this, hence my suggestion that FB start public discussions on the tradeoffs early.
This is also a situation where any static legal analysis is not very useful. As Facebook has demonstrated before, the company has it's own legal gravitational pull. The law will change in multiple jurisdictions to deal with a product like this.
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