Chainalysis: A startup that helps governments trace crypto

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Chainalysis in Action: Justice Dept Demands Forfeiture of 280 Crypto Addresses - https://news.ycombinator.com/item?id=24306511 - Aug 2020 (54 comments)

that's the foundation of our society 3.0

> people have the right to financial privacy, but technology shouldn’t be “warrant-proof.”

people aren’t warrant proof, the government is just used to a brief period of time where they could go to intermediaries instead of doing an actual investigation. this is just a reversion to the mean.

As much as I appreciate the sentiment, ring signatures are not a perfect solution for sender privacy at the moment given current ringsizes.

Almost every cryptocurrency with sender-obfuscation features bumps up against "poisoned output" attacks for low enough anonymity sets: https://www.youtube.com/watch?v=iABIcsDJKyM

But it is good enough for many purposes. The goal is to provide a high level of plausible deniability for the sender.