A bug report published by Blockstream developer Rusty Russell provided details on a critical vulnerability that could have allowed bad actors to steal their targets’ bitcoins.

The Lightning Network (LN) is a second-layer scaling solution for Bitcoin that has been under development for several years. It is designed to allow more transactions to be processed – and at lower fees – without clogging the network.

There are currently three independent teams working on their own implementations of the LN protocol in different languages.

C-Lightning was developed by Blockstream while Eclair and Lightning Network Daemon (LND) were developed by ACINQ and Lightning Labs, respectively.