A Failed Hack: Hackers Attempted ‘51% Attack’ on Vertcoin

Vertcoin (VTC) network, a fork from the original Bitcoin Bitcoin While some may still be wondering what is Bitcoin, who created Bitcoin, or how does Bitcoin work, one thing is certain: Bitcoin has changed the world.No one can remain indifferent to this revolutionary, decentralized, digital asset nor to its blockchain technology.In fact, we’ve gone a long way ever since a Florida resident Laszlo Hanyecz made BTC’s first official commercial transaction with a real company by trading 10,000 Bitcoins for 2 pizzas at his local Papa John’s.One could now argue that While some may still be wondering what is Bitcoin, who created Bitcoin, or how does Bitcoin work, one thing is certain: Bitcoin has changed the world.No one can remain indifferent to this revolutionary, decentralized, digital asset nor to its blockchain technology.In fact, we’ve gone a long way ever since a Florida resident Laszlo Hanyecz made BTC’s first official commercial transaction with a real company by trading 10,000 Bitcoins for 2 pizzas at his local Papa John’s.One could now argue that Read this Term network, was attacked by hackers on December 1, but fortunately, its security measures stayed intact.

Revealed today by James Lovejoy, Vertcoin’s lead maintainer, hackers attempted to pull a 51 percent attack on the network but ended up paying for the privileges.

“Based on the market prices during the attack's preparation and the difficulty of the blocks the attacker produced, we estimate the attacker spent between 0.5-1 BTC to perform the attack,” Lovejoy explained.

“The total value of the block rewards the attack received is 13825 VTC (~0.44 BTC). Given the attack was likely not profitable to perform based solely on block rewards, the motivation for the attack is not certain.”

To gain control on the Vertcoin’s network, the attackers targeted crypto exchange Bittrex first.

“I contacted Bittrex, Vertcoin's most prominent exchange, to recommend they disable the Vertcoin wallet on their platform once it became clear an attack was in progress, which they subsequently did,” he noted in the latest report.

Lessoned learned

Created in 2014, Vertcoin is one of the many Bitcoin forks available in the market today. The Blockchain Blockchain Blockchain comprises a digital network of blocks with a comprehensive ledger of transactions made in a cryptocurrency such as Bitcoin or other altcoins.One of the signature features of blockchain is that it is maintained across more than one computer. The ledger can be public or private (permissioned). In this sense, blockchain is immune to the manipulation of data, making it not only open but verifiable. Because a blockchain is stored across a network of computers, it is very difficult to tamp Blockchain comprises a digital network of blocks with a comprehensive ledger of transactions made in a cryptocurrency such as Bitcoin or other altcoins.One of the signature features of blockchain is that it is maintained across more than one computer. The ledger can be public or private (permissioned). In this sense, blockchain is immune to the manipulation of data, making it not only open but verifiable. Because a blockchain is stored across a network of computers, it is very difficult to tamp Read this Term of the coin was attacked last year in a similar style, resulting in the theft of $100,000 worth VTC coins.

“Vertcoin was previously 51% attacked in Dec 2018 and has since changed its proof-of-work algorithm to Lyra2REv3,” he stated.

This change of algorithm turned out to be really effective, which eventually prevented the recent attempt for the attack.

“Given the reorg was just deeper than 600 blocks (Bittrex's confirmation requirement for VTC), it is possible that Bittrex was the original target, but the double-spend portion attack was aborted due to Bittrex disabling their wallet before the fork could be released,” lead maintainer stated.

Though both crypto projects and regulators are working to curb attacks on blockchains, many exchanges are still getting attacked by hackers. Most recently, hackers attacked UpBit, a South Korean crypto exchange, and stole $50 million worth Ether.