Ethereum Classic (ETC), the cryptocurrency using the original Ethereum blockchain after Ethereum (ETH) forked away following the DAO hack in 2016, has just introduced an alert system that monitors suspicious activity leading up to a double-spend attack.
As previously reported by IIB, Ethereum Classic underwent a 51% attack or double-spend attack on January 5, 2019. The attack resulted in 88,500 ETC (roughly $450,000 at the time) being stolen from the ETC blockchain.
To prevent this from ever happening again, the newly appointed ETC Core team has developed an alert system that surveils the level of threat to Ethereum Classic’s blockchain. The system looks for suspicious activity based on block analysis and block propagation patterns.
Anyone can access the tool and view its status at ETCStatus.Live.Proof-Of-Work (PoW) Networks Are Easily Susceptible to 51% Attacks
Data provided by Crypto51 shows the theoretical cost of conducting a 1-hour 51% attack on a large array of proof-of-work (PoW) blockchains. To carry out such an attack on Bitcoin (BTC) for 1 hour, it would cost nearly $290,000.
Ethereum (ETH) is the next most secure with the same attack costing almost $77,000, followed by Litecoin (LTC) with this attack costing nearly $20,000.
For Ethereum Classic (ETC), a 1-hour 51% attack would only cost $4,317, and 85% of the hashing power can be rented from Nicehash.
A ton of other altcoins are even cheaper and easier to attack, with Vertcoin costing only $155, Bitcoin Private costing just $29, MonaCoin costing $924, and many other altcoins costing less than $10 to attack for 1 hour.
One coin which has gained a ton of popularity and is touted as a highly secure protocol for the issuance of security tokens is Ravencoin. The cost to 51% attack this coin for 1 hour is just $3,728.
All in all, these coins are surprisingly cheap to 51% attack, but recent experiences show us that these types of attacks ar...