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From: Matt Whitlock <bip@mattwhitlock.name>
To: Natanael <natanael.l@gmail.com>
Cc: bitcoin-development@lists.sourceforge.net
Subject: Re: [Bitcoin-development] alternate proposal opt-in miner takes double-spend (Re: replace-by-fee v0.10.0rc4)
Date: Sun, 22 Feb 2015 08:50:30 -0500	[thread overview]
Message-ID: <2953246.T2DHreG0Tu@crushinator> (raw)
In-Reply-To: <CAAt2M18fPgYOsfdebmU1Tk6ATnndPBn0k2PN-4fUJs1iTBTqnQ@mail.gmail.com>

On Sunday, 22 February 2015, at 2:29 pm, Natanael wrote:
> In other words, you are unprotected and potentially at greater risk if you
> create a transaction depending on another zero-confirmation transaction.

This happened to one of the merchants at the Bitcoin 2013 conference in San Jose. They sold some T-shirts and accepted zero-confirmation transactions. The transactions depended on other unconfirmed transactions, which never confirmed, so this merchant never got their money.

I keep telling people not to accept transactions with zero confirmations, but no one listens.



  reply	other threads:[~2015-02-22 13:50 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-22  8:02 [Bitcoin-development] alternate proposal opt-in miner takes double-spend (Re: replace-by-fee v0.10.0rc4) Adam Back
2015-02-22 12:34 ` Peter Todd
2015-02-22 13:29   ` Natanael
2015-02-22 13:50     ` Matt Whitlock [this message]
2015-02-22 14:07       ` Peter Todd
2015-02-22 16:00       ` Justus Ranvier
2015-02-22 16:17         ` Natanael
2015-02-22 16:25           ` Justus Ranvier
2015-02-22 16:36             ` Natanael
2015-02-23 11:03       ` Mike Hearn
2015-02-22 14:44     ` Natanael
2015-02-22 14:11   ` Adam Back
2015-02-22 14:25     ` Bryan Bishop
2015-02-22 14:33     ` Peter Todd
2015-02-22 15:18       ` joliver
2015-02-22 15:41         ` Peter Todd

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