1,000 Lego sets attack
I explain and contemplate a double spending attack that targets many low-value transactions instead of few high-value transactions.
I'm prepared to stand corrected.
@harding Thanks! Good points, especially (2) might turn out really significant. I'll update the article tonight.
I haven't heard much about this kind of attack. Have you seen anything on this elsewhere?
@harding Updated with your comments. Thanks a lot for your feedback. https://popeller.io/index.php/2020/11/22/1000-lego-sets/
@kalle Double spending lots of smaller transactions? I think it's been regularly mentioned. E.g., here's an excerpt from a StackExchange answer I wrote in 2014. https://bitcoin.stackexchange.com/questions/32562/when-to-worry-about-1-confirmation-payments/32564#32564
Also, the actual BetCoin Dice attack that stole ~$100,000 USD involved the double spending of hundreds of smallish transactions, so it's not just theory. (Though those double spends were against 0-conf transactions, but still with miner assistance.) https://bitcointalk.org/index.php?topic=327767.0