Subject: Re: [bitcoin-dev] BIP proposal: Timelocked address fidelity bond for BIP39 seeds

From: ZmnSCPxj <[email-masked]>
Date: Mon, 16 May 2022 00:00:16 +0000

Good morning Chris,

> Yes linking the two identities (joinmarket maker and teleport maker)
> together slightly degrades privacy, but that has to be balanced against
> the privacy loss of leaving both systems open to sybil attacks. Without
> fidelity bonds the two systems can be sybil attacked just by using about
> five-figures USD, and the attack can get these coins back at any time
> when they're finished.

I am not saying "do not use fidelity bonds at all", I am saying "maybe we should disallow a fidelity bond used in JoinMarket from being used in Teleport and vice versa".

Regards,
ZmnSCPxj