LNbits, a free, open-source Bitcoin Lightning wallet system, has urged all operators to shut down their servers because of a wave of attacks, according to the project's statement. The project said it has several security fixes to release and asked operators to be careful until those fixes are out.
One operator said new accounts used an exploit to withdraw 2,285,545 satoshis, about 0.023 bitcoin, from his server before he could stop it. The report does not say which vulnerability was exploited or how many servers have been affected.