TL;DR
=
* All known Lightning channel and factory protocols are susceptible to forced
expiration spam attacks, in which an attacker floods the blockchain with
transactions in order to prevent honest users from putting their transactions
onchain before timelocks expire.
* Feerate-Dependent Ti
Hi Peter,
> Altruistic third parties can partially mitigate replacement cycling(1)
attacks
> by simply rebroadcasting the replaced transactions once the replacement
cycle
> completes. Since the replaced transaction is in fact fully valid, and the
> "cost" of broadcasting it has been paid by the re
