Charles Hoskinon publicly endorsed Bitcoin (BTC) and Cardano (ADA), stating that the UTXO-based design is safeguarding users against widespread crypto scams. He compared it with Ethereum, which he criticized to subject users to greater risk by virtue of its account-based design. These remarks came after we had heard about a 50M scam in USDT, in which the fraudsters took advantage of address-copying behavior to defraud users.
UTXO Model Blocks Poisoning
Hoskinson said that both Bitcoin and Cardano follow the Unspent Transaction Output (UTXO) model, in which each transaction is treated as an input and an output. This design helps to keep attackers off their feet, by not allowing one to easily poison the addresses or replicate transaction histories. He was straightforward that Bitcoin and Cardano are not affected by address poisoning, and this is supporting his long-standing point that UTXO systems provide better user-level security by default.
Etherium Account Model
Hoskinson came out in direct criticism of the account-based system of Ethereum, displaying the entire address history publicly. The scammers use this openness to send minor amounts of cash under the form of dust to generate false addresses that appear to look like valid ones. Users risk transferring money to attackers when they copy addresses in the transaction histories. This structural shortcoming was one of the problems that Hoskinson identified as a habitual problem and not a user error.
Trade-Offs that Design Can Determine Security
Such trade underscores a bigger argument on blockchain design. UTXO systems are more secure and isolate transactions whereas account-based systems are more flexible and composable with a smart contract. The remarks of Hoskinson sparked debate once again throughout the crypto community on the topic of whether scalability and programmability should be at the expense of increased exposure to scams.
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