Today I learned that you can double spend an unconfirmed transacton.
I heard a story of a person who's laptop got encrypted with ransomware and had to pay 0.05 BTC to get the key to decrypt it and gain access to his laptop. The police with experts were brought in. They paid the bitcoin, when the mempool was very busy, but they used a very low fee. The attackers saw the unconfirmed transaction and sent the key to decrypt the laptop. When they received the key, they created a new transaction with higher fees to their own address.
Never trust a zero confirmation transaction.
Duvel
npub10y…e39j5
2024-03-18 22:36:46
Author Public Key
npub10yah0vsgha874vdf7vzs5tm629nmpkevn6qpua9y6xdcw3ayqc2q5e39j5Published at
2024-03-18 22:36:46Event JSON
{
"id": "e0bf5939ee81eb21c1f02d79bfa7248e4a20c9cffc9cabe4c3a864bcc2080bce",
"pubkey": "793b77b208bf4feab1a9f3050a2f7a5167b0db2c9e801e74a4d19b8747a40614",
"created_at": 1710801406,
"kind": 1,
"tags": [],
"content": "Today I learned that you can double spend an unconfirmed transacton.\n\nI heard a story of a person who's laptop got encrypted with ransomware and had to pay 0.05 BTC to get the key to decrypt it and gain access to his laptop. The police with experts were brought in. They paid the bitcoin, when the mempool was very busy, but they used a very low fee. The attackers saw the unconfirmed transaction and sent the key to decrypt the laptop. When they received the key, they created a new transaction with higher fees to their own address. \n\nNever trust a zero confirmation transaction.",
"sig": "37dcd0ad76ee92b02aa1c644347f3b8dacd5698941fb1740cfbfa34588a473022eb0263c304a775f3e374aaeebab9d5b86ac1ba9266a6e213f1902b08728ed11"
}