Spam attack makes transactions fill block space in Bitcoin ABC chain
The method of spam attack kept sending transactions to the same address repeatedly. According to blockdozer.com, one particular address received 500 early spam transactions after which a strange appearance of the address to be sending transactions to itself had taken place.
Due to its largest block size limit, it takes quite a lot of spam transactions to have a truly negative impact on the network. The three blocks did not exceed a size of 10 MB. In 2-3 weeks these attacks could have a negative impact on the block size or it would fill up all drives of Bitcoin ABC full nodes, and if the breadth increases, there will be a hard-hitting impact on the cost of BCH transactions and along with that the availability of block space will also be severely impacted. According to rules, Bitcoin ABC, however, cannot increase its block size in the future.
Chains with smaller block sizes would have a more serious impact when compared to Bitcoin ABC. Bitcoin is highly vulnerable to become expensive in block size quickly, due to the increase in the cost of smaller units of the coin and the way transactions work when a spam attack is bound to happen. For including a transaction into the block, it becomes more expensive. This kind of transaction will be added into a closer to full block.
However, there are no suspects in the spam attack as it had begun before the fork, but after the fork increased in its intensity. Since there aren’t any dedicated Bitcoin SV explorers it becomes difficult to find out if the attack is affecting both SV and ABC, or simply just ABC.
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