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   1340

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.

BitBay ot Delist Monero

Exchange has to comply with “market standards” and the fight against money laundering
26 November 2019   275

BitBay cryptocurrency exchange announced the termination of support for the Monero cryptocurrency. The platform explained the decision by the need to comply with “market standards” and the fight against money laundering.

Acceptance of deposits at the XMR exchange will stop on November 29, trading will be stopped on February 19, 2020. In addition, due to the Monero network hard fork planned for November 30, the withdrawal of XMR will not be possible from November 29 to December 5.

Users are asked to finally withdraw funds by May 20 of next year.

Monero (XMR) can selectively utilize anonymity features among projects. This feature of XMR is a subject to end of transaction support. The decision was made to block the possibility of money laundering and inflow from external networks. Monero (and other cryptocurrencies with this specification) has been already delisted on other fiat-crypto exchanges for the same reason. As a licenced exchange, BitBay has to follow the market standards.
 

BitBay

 As you can see, BitBay named Monero's anonymity as the reason for delisting.