On October 22nd, according to Cointelegraph, Bitcoin security researcher and developer Antoine Riard has quit developing the Lightning Network due to security issues and fundamental challenges facing the Bitcoin ecosystem. He believes that the Bitcoin community is facing a "difficult situation" because a new type of replacement loop attack has put the Lightning Network in a "dangerous position". It is understood that the replacement loop attack is a new type of attack, where attackers can use inconsistencies between various memory pools to steal funds from payment channel participants. He pointed out that addressing this new type of attack may require changes to the underlying Bitcoin network, "these types of changes require maximum transparency and recognition from the entire community, as we are changing the security architecture of the entire node processing requirements or decentralized Bitcoin ecosystem".