XMR Community to Hold Breath While Hard Fork's Ongoing

A hard fork of Monero executed recently, but the success of the implementation is still unclear
06 April 2018   2221

The controversial hard fork of Monero's anonymous crypto currency was initiated this night, but its results are still unclear. This is reported by CoinDesk.

On the block number 1 546 000, a crypto currency software update was launched. Taking into account the ambiguity of this update, the community continues to monitor its dissemination process.

Although hard forks are not uncommon for the Monero blockchain, the last one stands out against the general background, as it is designed to introduce a new consensus algorithm that will protect the network from the ASIC-miners usage.

The decision to conduct hard fork was made in the light of the announcement by the Bitmain ob the release of the device aimed at Monero, which was made last month. After that, several groups of users announced that they don't support the new development vector of Monero and launch their own projects that will use the old code, including Monero Classic and Monero Original.

Consequently, the community continues to monitor the hash rate and the rate of release of blocks in the main Monero network to determine what percentage of miners could go to third-party blockchains.

Fluctuations in the hash-rate caused a panic on Reddit, but the developer "hyc" said that "a couple hours for us to see how the network overall hash rate settles out."

Observers also track activity in the old Monero blockchain and maintain a list of pools that have not yet updated their software to join the new chain.

The update also increased the size of the Monero ring from 5 to 7, which should help to increase the reliability of anonymous cryptocurrency tools and protect it from deanonimization, which in theory may occur with the launch of the MoneroV hardfork.

Monero Team to Kill Coin Burning Bug

A scenario of a hypothetical attack described by one of the participants of Monero's subreddit helped to identify the bug
26 September 2018   491

Developers of the Monero cryptocurrency have eliminated a bug that could allow intruders to "burn" funds in organizations' wallets, while sacrificing only a small amount in the form of transaction commissions. This is reported in the official announcement of the project.

A scenario of a hypothetical attack described by one of the participants of Monero's subreddit allowed to identify the bug.

Practically speaking this bug is exploited as follows. An attacker first generates a random private transaction key. Thereafter, they modify the code to merely use this particular private transaction key, which ensures multiple transactions to the same public address (e.g. an exchange's hot wallet) are sent to the same stealth address. Subsequently, they send, say, a thousand transactions of 1 XMR to an exchange. Because the exchange's wallet does not warn for this particular abnormality (i.e. funds being received on the same stealth address), the exchange will, as usual, credit the attacker with 1000 XMR. The attacker then sells his XMR for BTC and lastly withdraws this BTC. The result of the hacker's action(s) is that the exchange is left with 999 unspendable / burnt outputs of 1 XMR.
 

dEBRUYNE at Get Monero

Monero developers note that this method does not allow the attack organizer to directly receive the XMR coins deposited in this way. However, an attacker can withdraw XMR through bitcoins, and the exchange will remain with 999 non-consumable or "burned" outputs from 1 XMR.

The created fix was privately distributed to exchanges and large merchants, in order not to attract unnecessary attention to the time of elimination of problems. According to the developers, the exploit was not used to perform real attacks.

In early August, because of the critical bug in the code of Monero, which allows to manipulate the amount of transactions, Livecoin suffered losses exceeding $ 1.8 million.