"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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