From: /dev /fd0 <alicexbtong@gmail•com>
To: Bitcoin Development Mailing List <bitcoindev@googlegroups.com>
Subject: [bitcoindev] UTXO probing attack using payjoin
Date: Tue, 25 Mar 2025 04:46:38 -0700 (PDT) [thread overview]
Message-ID: <450755f1-84c5-4f32-abe0-67087ae884d6n@googlegroups.com> (raw)
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Hi everyone,
Sometimes we are curious and want to know about UTXOs in other wallets.
Payjoin allows you to do this and the recipient would never doubt it
because it's a privacy tool. It's possible to find UTXO in recipient's
wallet without sending any bitcoin. It's called UTXO probing attack and
described in BIP 77-78.
I have shared a demo with all the details in this [post][0]. I have used
bullbitcoin wallet for testing this because it was the only [wallet][1]
which supports payjoin v2 (send, receive) and testnet3.
I think users should be aware of this tradeoff and the information they
share with the sender in payjoin. Payjoin should only be used with trusted
senders.
[0]: https://uncensoredtech.substack.com/p/utxo-probing-attack-using-payjoin
[1]: https://en.bitcoin.it/wiki/PayJoin_adoption
/dev/fd0
floppy disk guy
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next reply other threads:[~2025-03-25 11:48 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-25 11:46 /dev /fd0 [this message]
2025-03-25 12:52 ` [bitcoindev] " jbesraa
2025-03-26 19:38 ` /dev /fd0
2025-03-28 19:28 ` waxwing/ AdamISZ
2025-03-28 23:41 ` Yuval Kogman
2025-03-29 13:00 ` /dev /fd0
2025-03-29 12:34 ` /dev /fd0
2025-03-25 13:39 ` [bitcoindev] " Yuval Kogman
2025-03-26 19:26 ` /dev /fd0
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