7.3 Finding Private Bitcoin Lightning Network Channels
Wasabi Wallet
Researchers discovered private Lightning Network channels by analyzing on-chain transaction patterns. Channel openings register as 2-of-2 multisig outputs under 0.16 BTC; the attack exploits users' idiom of reusing change outputs when opening sequential channels, allowing observers to infer private channels between public ones. Channel closures showing hash-time-locked contracts also revealed chan

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