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67 sats \ 1 reply \ @cointastical 28 Jun \ on: BDMD #1 - Bitcoin was hacked / will be hacked bitcoin_beginners
March 2013,
BitcoinTalk user MacBookAir double spent a transaction that had six or more confirmations. The transaction double spent was a deposit to an exchange.
Though the KYC'd customer eventually was convinced to return the Bitcoin funds, the on chain double spend did occur.
That occurred following the chain split intentionally "flipped" by the miners after learning about the cause for there to be the two competing chain tips.