It’s interesting to see the enormous surge of coinjoins. And when you spend, you might want to use a coinjoin.
We had some fellow plebs that bought some stuff via our webshop. Just to check for our fellow Noderunners we decided to check on the UTXO, it came from a relatively large UTXO.
On public open source block explorers like @bithypha and many others you can already check out the trace.
In this particular case it was directly clear it came from a too large bitcoin number. For a lousy webshop buy.
If you have larger UTXOs to spend from, make sure you coinjoin, otherwise if that data leaks or the shop has bad intentions you are at risk.
Of course it’s best to use lightning, but if you use custodial lightning you might again use some additional privacy. It should for sure become best practice for on-chain spending.
Another use case that is important is the data leakage and sharing risk. Your UTXO’s coming from KYC exchanges are linked to your personal data and put into many databases with government institutions. It’s a matter of time until they are leaked and your UTXO on your name not spend, or just moved one hop, is worth trying to knock on your door.
You might not be as paranoid as many plebs, but once it becomes clear the data leakage has occurred you might simply be too late…
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