"Conclusion:

The Lightning Network has significantly contributed

to cryptocurrency adoption thanks to its cheap, fast, and

anonymous payments. This paper challenges payment pri-

vacy in the LN with a new threat of AS-level adversaries,

who stealthily analyze network traffic. Our evaluation of

the real-world data shows that LN topology is worryingly

centralized at the AS-level, which allows almost one-third

of payments to be deanonymized by this novel attack. We

hope this work guides the direction for developing ad-

ditional countermeasures against network-level attacks in

not only the LN but also other payment channel networks. "

#bitcoin

#nostr

#monero

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