CEX.IO official statement:In October the development of the “
GHash.IO” project was transferred to the
CEX.IO development team.
The team worked hard to
completely rewrite the whole GHash.IO engine, as well as perform other stability and responsiveness improvements, which you all may have noticed.
We have also
removed the 3% fee and
released merged-mining alt coins to the miners.
We would like to state that
CEX.IO does not have any affiliation with the double-spending attack.
As a part of the bitcoin community we condemn such actions, which harm the bitcoin network.
We have conducted an internal investigation and can confirm, that from the 25th to 27th of September, the
GHash.IO pool was mining on the address:
1MA7CKbWMyKdPkmsbnwmfeLh1hYy5A3gy8 to which we do not have any access or connection.
However, the rewards for mined blocks on the above mentioned address were paid out from the GHash.IO wallet as per usual.Following further investigation and server log analysis we have noticed that several private keys were imported to the GHash.IO wallet within that time period. (
exact date could not be determined). This was done to conceal the missing bitcoins, since there was no direct deposit transaction.
We haven’t found any signs of the system being compromised, but we believe that the attack was made from within the former development team.
At the moment CEX.IO LTD is the lawful owner of the
CEX.IO and
GHash.IO projects as well as their domains.
Our team at CEX.IO LTD. will do everything possible to prevent pool capacity manipulation in the future.
We understand the communities’ concern about the misconduct of such great computing power at our pool (
since recently we have become the #1 pool), and we will gladly take into consideration any comments or suggestions to improve the pool’s security and overall quality of service.