New research paper about HavenoDex shows trades between Monero and Bitcoin are traceable.
Abstract:
…We further identify and report on a privacy vulnerability in the recently popularized Haveno exchange, demonstrating that certain Haveno trades could be detected, allowing transactions to be linked across the Monero and Bitcoin blockchains.
No, the transaction tracing relies on the transparent bitcoin chain. It does not work for the off-chain payment methods and especially not for something super private like cash by mail.
Why is it news that a traceable coin is traceable
It’s not really but the paper suggested some improvements that would make the transactions waaaay harder to link to a trade. Definitely a net-positive for privacy.