Payment channel networks, and the Lightning Network in particular, seem to offer a solution to the lack of scalability and privacy offered by Bitcoin and other blockchain-based cryptocurrencies. Previous research has focused on the scalability, availability, and crypto-economics of the Lightning Network, but relatively little attention has been paid to exploring the level of privacy it achieves in practice. This paper presents a thorough analysis of the privacy offered by the Lightning Network, by presenting several attacks that exploit publicly available information about the network in order to learn information that is designed to be kept secret, such as how many coins a node has available or who the sender and recipient are in a payment routed through the network.

翻译：电灯频道网络,特别是电灯频道网络,似乎为解决Bitcoin和其他以街区链为基础的加密系统提供的缺乏可缩放性和隐私问题提供了解决办法,先前的研究侧重于电灯网络的可缩放性、可用性和加密经济学,但相对较少注意探索其在实践中所实现的隐私程度,本文对电灯网络提供的隐私进行了透彻分析,多次利用公开可得的网络信息进行攻击,以了解旨在保密的信息,例如有多少硬币有节点可用,或谁通过网络付款,发件人和收款人是谁。