Bitcoin is back above $ 8,000, but the market is still volatile.
A significant vulnerability has been discovered in the Lightning Network which operates parallel to the main Bitcoin network to facilitate small transactions.
Rusty Russel, one of its leading developers, discovered that network nodes were not performing some needed basic checks. And it could have lead to false payments.
They now claim that the bug is fixed. But there are concerns over the overall architecture of the Lightning Network since it doesn’t protect against the double-spending problem.