The hacker returned some of the tokens after the 51% attack on Ethereum Classic
As the website of the exchange Gate.io, the unknown returned $100 thousand in the Ethereum Classic (ETC) cryptocurrency to the exchange account without explaining the reasons for his act. In total, the exchange claimed the loss of users as a result of the attack of about 40 thousand ETC .
Attempts to contact the hacker did not bring results. The exchange assumes that the attack was carried out by a" white " hacker and thus showed the risks associated with the use of cryptocurrencies, trading and security of the blockchain based on the Proof-of-Work Protocol.
"If the attacker is not using this to make a profit, then he may be a white hacker who wants to remind people of the risks of blockchain consensus and security that relies on computing power," the exchange said in a statement.
To avoid such Gate attacks.io has adopted the advice of Ethereum Classic developers about the need to increase the number of transaction confirmations to 4 thousand.
Let me remind you, on January 7, the network reported an attack of 51% on the Ethereum Classic blockchain. The ETC development team initially denied this information, citing rumors, but in the end was forced to admit the fact of the attack, and called on cryptocurrency exchanges and mining pools to increase the number of transaction confirmations.
Also, the fact of the attack was confirmed on Twitter by the Bitfly service (Etherchain), reporting a temporary increase in the number of block confirmations in the mining pool ETC and recommended that all services check the blockchain and significantly increase the number of necessary confirmations.
The evening of January 7th the developers ETC have also reported the probable cause of the attack - they thought that the cause were the actions of the manufacturer of the miners, the company Linzhi Shenzhen, supposedly confirmed that she was engaged in testing new ASIS devices for the algorithm Ethash with the rate of 1400 /Mh.
All health and profit.
What an honest Hacker.
Half returned.